PART-I (MCQs) — COMPULSORY

NOTE:

(i) First attempt PART-I (MCQs) on separate OMR Answer Sheet which shall be taken back after 30 minutes.

(ii) Overwriting/cutting of the options/answers will not be given credit.

(iii) There is no negative marking. All MCQs must be attempted.

Q.1.

(i) Select the best option/answer and fill in the appropriate Box on the OMR Answer Sheet. (20 × 1 = 20)

(ii) Answers given anywhere else, other than OMR Answer Sheet, will not be considered.

1.

‘Blue dwarfs’ and ‘Red giants’ respectively refer to:

(A) Moons of Jupiter
(B) Young star and Old star
(C) Old star and Young star
(D) None of these

2.

Most major Tsunamis are produced by earthquakes with hypocenters less than:

(A) 30 km
(B) 40 km
(C) 50 km
(D) None of these

3.

Which of the following source of energy is caused by uneven heating of earth’s surface?

(A) Wind
(B) Solar
(C) Biomass
(D) None of these

4.

Global winds towards western direction are known as:

(A) Trade winds
(B) Western winds
(C) Reynolds wind
(D) None of these

5.

Perinatal transmission is said to occur when a pathogen is transmitted from:

(A) Non-human to human
(B) Infected to uninfected
(C) Mother to infant
(D) None of these

6.

Which of the plant group needs both land and water to complete their life cycle?

(A) Bryophyta
(B) Tracheophyta
(C) Thallophyta
(D) None of these

7.

Maximum amount of carbohydrates are obtained from:

(A) Nuts
(B) Plant oil
(C) Whole grain food
(D) None of these

8.

Which of the following class has the largest number of animals?

(A) Fishes
(B) Insects
(C) Mammals
(D) None of these

9.

The process of preserving meat by stewing in a covered earthenware jug is called:

(A) Burial
(B) Jugging
(C) Curing
(D) None of these

10.

All operating systems get their total memory initialized from:

(A) BIOS
(B) RAM
(C) ROM
(D) CPU

11.

The amount of data transmitted for a given amount of time is called:

(A) Noise
(B) Bandwidth
(C) Frequency
(D) None of these

12.

Which of the following products can be prepared using raw guava?

(A) Jam
(B) Jelly
(C) Both (A) and (B)
(D) None of these

13.

Which of the following is used as a stabilizer in ice cream?

(A) Sugar
(B) Milk
(C) Gelatin
(D) None of these

14.

In the structure of fiber, the light is guided through the core due to total internal:

(A) Reflection
(B) Refraction
(C) Diffraction
(D) None of these

15.

Who is known as the inventor of Artificial Intelligence?

(A) Charles Babbage
(B) John McCarthy
(C) Alan Turing
(D) None of these

16.

Which of the following is the common language for Artificial Intelligence?

(A) Java
(B) Python
(C) Lisp
(D) None of these

17.

Cement factory labourer are prone to:

(A) Leukemia
(B) Cytosilicosis
(C) Bone marrow
(D) None of these

18.

The fastest enzyme is:

(A) Pepsin
(B) DNA polymerase
(C) Carbonic anhydrase
(D) None of these

19.

Process of adding vitamins to milk is known as:

(A) Flavoring
(B) Fortification
(C) Fermentation
(D) None of these

20.

The waves which are used for line of sight (LOS) communication are called:

(A) Space waves
(B) Cable waves
(C) Antenna waves
(D) None of these

PART-II

NOTE:

(i) Part-II is to be attempted on the separate Answer Book.

(ii) Attempt ONLY FOUR questions from PART-II by selecting TWO questions from EACH SECTION. All questions carry EQUAL marks.

(iii) All the parts (if any) of each Question must be attempted at one place instead of at different places.

(iv) Write Q. No. in the Answer Book in accordance with Q. No. in the Q. Paper.

(v) No Page/Space be left blank between the answers. All the blank pages of Answer Book must be crossed.

(vi) Extra attempt of any question or any part of the question will not be considered.

(vii) Use of Calculator is not allowed.

SECTION – A

Q.2.

(a)

What effects are produced due to Rotation & Revolution of Earth? Explain briefly. (5)

(b)

Describe Electromagnetic Radiations. Give its types and explain their applications. (5)

(c)

What are Hurricanes? How they are formed and what level of damage they can produce? (5)

(d)

Explain the advantages and disadvantages of nitrogen containing fertilizers and insecticides. (5)

Total: (20)

Q.3.

(a)

Explain how temperature and light intensity affect the rate of photosynthesis in plants. (5)

(b)

Describe the structure and functions of capillaries in the human blood circulatory system. (5)

(c)

What is hepatitis? Give its types and briefly explain its common symptoms along with preventions. (5)

(d)

Differentiate between biomass and biogas. Briefly explain various methods for obtaining energy from biomass. (5)

Total: (20)

Q.4.

(a)

What is deforestation? State the disadvantages caused to the environment due to this. (5)

(b)

Explain how water pollution is produced? Describe the part played by bacteria after a river has been polluted by sewage. (5)

(c)

State some examples of pollution caused by human activity and discuss the effects of each example. (5)

(d)

What does air pollution mean? State ten serious effects of air pollution on the environment and briefly explain how they can be reduced. (5)

Total: (20)

Q.5.

(a)

Differentiate between food contaminants and food adulterants. (5)

(b)

Enlist major food groups based on nutrients, their functions and sources. (5)

(c)

What is Artificial Intelligence and how does it differ from traditional programming? Describe the main branches of Artificial Intelligence. (5)

(d)

What are the advantages of optical fibers in communication system? Draw basic structure of optical fiber and explain propagation of light through it. (5)

Total: (20)

SECTION – B

Q.6.

(a)

In an annual sale, Saima buys a Fridge and a Freezer. The sale offers 15% off everything and she pays a total of Rs. 57,120/-. If the price of a freezer, before the sale, is Rs. 40,000/-. What was the price of the Fridge before the sale? (5)

(b)

Mr. Rasheed pays a deposit of Rs. 60,000/- followed by 36 equal monthly payments. The total amount that he pays is 127% of the basic price of Rs. 3,360,000/-. Calculate Rasheed’s monthly payment. (5)

(c)

Divide Rs. 600/= among A, B and C so that Rs. 40 more than 2/5 of A’s share, Rs. 20 more than 2/7 of B’s share and Rs. 10 more than 9/17 of C’s share may be equal. (5)

(d)

Find out the correct words from the jumbled spellings given below:

(i) TEANAIRM

(ii) VAGNACEXETRA

(iii) VADIELTIONC

(iv) PKUNYBARTC

(v) TAESROSNC

(5)

Total: (20)

Q.7.

(a)

Calculate the marked price of the sculpture if it is sold for Rs. 79,950/- after a discount of 18%.

On another day, if 10% discount is given on the marked price of the same sculpture before it is sold at a further discount of 8%. Would the sale price still be Rs. 79,950/-? (5)

(b)

Majid pays a total of Rs. 51,520/- for his car insurance. The total is made up of a basic charge plus 15% sales tax. Calculate the amount of sales tax that Majid pays. (5)

(c)

A camp site in the shape of a rectangle has sides (3x + 6) m and (x + 1) m and the length of the diagonal is (4x + 1) m. Find the area and the perimeter of the camp site. (5)

(d)

Arrange the following fractions in the descending order.

(a)
7/12, 4/7, 9/14, 25/42

(b)
5/8, 7/12, 5/9, 13/24

(c)
6/35, 5/21, 2/7, 4/15

(d)
2/5, 6/11, 7/15, 9/20, 13/25

(e)
1/5, 2/7, 3/8, 4/13, 5/17

(5)

Total: (20)

Q.8.

(a)

A train in first five successive minutes from its start runs 68 m, 127 m, 208 m, 312 m and 535 m and for next 5 minutes maintains an average speed of 33 km/hr.

Find the whole distance covered and the average speed in covering this total distance. (5)

(b)

A solid cuboid with base 10 cm by 6 cm is available. The height of the cuboid is ‘y’ centimeter and the total surface area of the cuboid is given to be 376 cm².

Find the height of the cuboid. (5)

(c)

In a six member family (A, B, C, D, E and F), there are two fathers, three brothers and a mother.

If C is the sister of F, B is the brother of E’s husband. D is the father of A and grandfather of F.

Who is E’s husband? (5)

(d)

How many prime numbers are between each of the following pairs of numbers?

(a) √3 and √120

(b) √10² and √410²

(c) √10³ and √999³

(d) √28³ and √120

(e) √8² and √400

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PART-I (MCQs) — COMPULSORY

NOTE:

(i) First attempt PART-I (MCQs) on separate OMR Answer Sheet which shall be taken back after 30 minutes.

(ii) Overwriting/cutting of the options/answers will not be given credit.

(iii) There is no negative marking. All MCQs must be attempted.

Q.1.

(i) Select the best option/answer and fill in the appropriate Box on the OMR Answer Sheet. (20 × 1 = 20)

(ii) Answers given anywhere else, other than OMR Answer Sheet, will not be considered.

1.

In fish liver oil there is:

(A) Vitamin A only
(B) Vitamin D only
(C) Vitamin A and vitamin E
(D) Vitamin A and Vitamin D

2.

When day and night are equal?

(A) 23rd February and 21st September
(B) 21st March and 23rd September
(C) 23rd March and 21st September
(D) None of these

3.

What are total number of combinations of 09 things taken 03 at a time?

(A) 18
(B) 27
(C) 48
(D) 84

4.

The chemical formula for alum is:

(A) KAl(SO₄)₂·12H₂O
(B) KSi(SO₄)₂·12H₂O
(C) KAl(SO₄)₂·8H₂O
(D) None of these

5.

If the radius of a circle is increased three times then its area is increased:

(A) Three times
(B) Six times
(C) Nine times
(D) None of these

6.

One degree of longitude on the equator is equal to a distance of:

(A) 49 miles
(B) 69 miles
(C) 39 miles
(D) 60 miles

7.

The protein molecule is made of:

(A) Alkaloids
(B) Nucleosides
(C) Short range chain of amino acids
(D) Long range chain of amino acids

8.

The minimum amount of vitamin stored in the human body is of:

(A) Vitamin D
(B) Vitamin C
(C) Vitamin E
(D) Vitamin A

9.

The isotopes of any element contain equal number of:

(A) Protons
(B) Neutrons
(C) Both electrons and protons
(D) None of these

10.

The pH of soil is raised using:

(A) Lime stone
(B) Gypsum
(C) Urea
(D) None of these

11.

Which of the following is used for measuring distance?

(A) Coulomb
(B) Light year
(C) Farad
(D) Curie

12.

Which of the following contains a greater number of carbon atoms in one mole of each compound?

(A) Chloroform
(B) Methanol
(C) Water
(D) Ethanol

13.

A pencil dipped in water appears bent due to:

(A) Reflection
(B) Diffraction
(C) Refraction
(D) None of these

14.

Fishes die outside the water due to:

(A) Carbon monoxide
(B) Oxygen
(C) Sun light
(D) Non-absorption of oxygen

15.

In dementia a person:

(A) Loses his weight
(B) Loses thinking and writing
(C) Loses thinking, remembering, and reasoning
(D) All of these

16.

Earthquake is measured by the instrument:

(A) Wave guide
(B) Barometer
(C) Seismograph
(D) Hydrometer

17.

A cyclone is formed:

(A) When the warm air rises upward over the ocean
(B) When moist air rises upward over the ocean
(C) When moist air pressed downward over the ocean
(D) When warm, moist air rises upward over the ocean

18.

Why red light is used in traffic signal for danger?

(A) Due to short wavelength
(B) Due to high frequency
(C) It has long wavelength and high frequency
(D) It has long wavelength and short frequency

19.

The heavy water is:

(A) Denoted by D₂O and contains simple hydrogen
(B) Denoted by H₂O and contains deuterium
(C) Denoted by D₂O and contains deuterium
(D) Denoted by H₂O and contains simple hydrogen

20.

The ionosphere is located within the thermosphere and extends:

(A) From 60–300 km above the Earth's surface
(B) From 50–200 km above the Earth's surface
(C) From 50–300 km above the Earth's surface
(D) None of the above

PART-II

NOTE:

(i) Part-II is to be attempted on the separate Answer Book.

(ii) Attempt ONLY FOUR questions from PART-II by selecting TWO questions from EACH SECTION. All questions carry EQUAL marks.

(iii) All the parts (if any) of each Question must be attempted at one place instead of at different places.

(iv) Write Q. No. in the Answer Book in accordance with Q. No. in the Q. Paper.

(v) No Page/Space be left blank between the answers. All the blank pages of Answer Book must be crossed.

(vi) Extra attempt of any question or any part of the question will not be considered.

(vii) Use of Calculator is not allowed.

SECTION – A

Q.2.

(a)

What is Tuberculosis and Hepatitis? Explain briefly. (5)

(b)

Explain the mechanism of Fiber Optic Cable for signal. Explain its construction. (5)

(c)

Explain the difference between Middle Latitude Cyclones and Tornadoes. (5)

(d)

What is the difference between Ionic and Covalent bonding? Give examples. (5)

Total: (20)

Q.3.

(a)

What is the difference between Plastics and Elastics? Explain briefly. (5)

(b)

What is the role of Remote Sensing and GIS in Environmental Science? Discuss briefly. (5)

(c)

What are Kepler's laws related to the motion of planets? (5)

(d)

What is the difference between preservatives and antioxidants? Discuss briefly with examples. (5)

Total: (20)

Q.4.

(a)

What is the role of Carbohydrates and Vitamins in the body? Discuss briefly. (5)

(b)

Discuss the functioning of Liver and Pancreas. (5)

(c)

What are the standards of drinking water? How do Heavy Metals in the water affect living organisms? (5)

(d)

What is radioactivity? Discuss the laws of radioactivity. Name two radioactive elements. (5)

Total: (20)

Q.5.

(a)

What are the Plant Nutrition elements? Enumerate them. (5)

(b)

What is the difference between software and hardware? Give five examples of each. (5)

(c)

What are the types of earthquake waves? Discuss them. (5)

(d)

What are longitudinal waves, electromagnetic waves and Gamma radiations? Discuss them. (5)

Total: (20)

SECTION – B

Q.6.

(a)

If the sum of four numbers is 105. When 03 is added to a number, twice of another number, five times of third number and fourth number become equal to each other. What are these numbers in ascending order? (5)

(b)

Find out the correct word from the given jumbled spellings:

(i) UCTREUTRS
(ii) LOVONAC
(iii) CIHPROSTATAC
(iv) YNTIAUMH
(v) NNTHORER

(5)

(c)

Find the missing numbers in the series below:

(i) 121, 11, 81, 9, ?, 7

(ii) 100, 50, 25, ?, 6.25

(iii) 4, 9, 64, 125, 1296, ?

(iv) 2, 5, 12, 24, 48, ?

(v) 44, 22, 66, 33, 132, ?

(5)

(d)

If the sum of three-digit number is 15 and sum of 10th and unit digit is 12. The difference of unit digit from 10th digit is equal to 02. What is the three-digit number? (5)

Total: (20)

Q.7.

(a)

A man travels over the path of a right-angle triangle having base and hypotenuse 4 and 5 kilometers, respectively. After a complete round he continues in the same direction for 6 km and then turns at 90 degree and continues for another 8 km.

How long he has travelled and how far he is from his starting point? (5)

(b)

Hassan, Ali, Akbar, Nasir and Shahbaz are classmates having different pocket money. Hassan’s pocket money is one third as much as Ali and Ali has five times as much as Akbar. Akbar has thrice as much as Nasir and Shahbaz gets equal to Nasir and that of Ali.

If they get Rs. 8000, then find the pocket money of each. (5)

(c)

What will be the surface area and volume of a sphere if it has a radius of 7 m? (5)

(d)

Distribute Rs. 4320 among Zain, Aslam and Ashraf in such a way that if Zain gets 2 parts, then Aslam gets three parts, whereas Ashraf gets seven parts. (5)

Total: (20)

Q.8.

(a)

A man purchases a car in an amount of Rs. 2,400,000 in which he pays one-fourth extra as profit. Find the original amount of car and the amount of profit. (5)

(b)

Twelve men can complete a job in twenty-four days. After four days four persons quit. In how many days will this job be completed by the remaining persons? (5)

(c)

The shadow of a 10 m tall tree is falling on a high-rise building and its height is 100 m. If the tree is 20 m away from the wall, at what distance from the wall is the light source? (5)

(d)

There are three cars and they start moving in such a way that car A and B are moving opposite with speeds of 60 and 100 km/h. Car C is moving perpendicularly to both with a speed of 80 km/h.

What is the distance after 15 minutes between:

(i) A and B
(ii) A and C
(iii) B and C?

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PART-II

SECTION – A

Q. 2

(a)

Differentiate between a star and a planet. What is the magnitude of a star and how the color of stars is correlated with their temperatures?

(5)

(b)

“Semiconductors are the Brains of Modern Electronics.”

Explain in detail what this quotation means.

(5)

(c)

Briefly describe the most popular and accepted theory about the origin of the Universe.

(5)

(d)

What are the advantages and limitations of renewable energy resources? Briefly explain the prospects of non-conventional energy resources in Pakistan.

(5)

(20)

Q. 3

(a)

Explain with examples the relationship between cells, tissues and organs.

(5)

(b)

Explain the differences in structure and function between a cell wall and a cell membrane.

(5)

(c)

What is meant by transpiration? Explain in detail the significance of leaf structure in the process of transpiration.

(5)

(d)

What is meant by the term double circulation? Briefly describe how the heart is adapted to keep blood flowing in a double circulation.

(5)

(20)

Q. 4

(a)

What is the sequence of strata of atmosphere and on what factors does it depend?

(5)

(b)

Describe the water cycle and briefly explain the major processes involved in the water cycle.

(5)

(c)

What is the difference between asthenosphere and lithosphere? Explain various components of lithosphere.

(5)

(d)

Differentiate between food contaminants and food adulterants.

(5)

(20)

Q. 5

(a)

Define the term “malnutrition.” Elaborate its major causes and consequences.

(5)

(b)

Explain how a slice of bread after a few days decomposes due to the growth of fungi.

(5)

(c)

What is a computer memory? Describe its units and discuss various types of memories.

(5)

(d)

Differentiate between natural and artificial satellites. Briefly describe the working of communication satellites with some applications.

(5)

(20)

SECTION – B

Q. 6

(a)

A man is now 3 times as old as his son. In ten (10) years' time, the sum of their ages will be 76.

How old was the man when his son was born?

(5)

(b)

How many tiles of 20 cm² will be required to have a footpath 1 m wide carried around the outside of a grassy plot 24 m long and 14 m broad?

(5)

(c)

Mr. Faheem has dinner with his family at a restaurant which offers a 10% discount on food.

The marked price of the food that they order was Rs. 15,000/-. Given that there was a service charge of 10% and GST is 17%, calculate the total amount of money he has to pay.

(5)

(d)

Mr. Khawaja walked for 45 minutes at the rate of 3 km/h and then ran for half an hour at a certain speed.

At the end of that time he was 6 km away from the starting point.

How fast did he run?

(5)

(20)

Q. 7

(a)

A child went 90 m towards East, and then he turned right and went 20 m. Subsequently, he turned right and after going 30 m he reached his uncle's house.

From there he went 100 m to his North.

Determine how far he is from his starting point.

(5)

(b)

The average of 11 numbers is 63, that of the first 6 numbers is 60 and that of the last 6 numbers is 65.

Find the 6th number.

(5)

(c)

The following table shows some values of x and the corresponding values of y, where:

y = x³ − 3x − 10

Complete the table and draw a graph between x and y to find:

• the value of y when x = 1.8, and
• the value of x when y = 10.

(5)

(d)

Mr. Raheel invests Rs. 60,000/- in an account that earns simple interest.

At the end of 5 years, the investment is worth Rs. 85,000/-.

Calculate the rate of simple interest per year.

(5)

(20)

Q. 8

(a)

Find out the correct word from the given jumbled spellings:

(i) UORSEIS

(ii) REGAHT

(iii) TYLEAL

(iv) RAMYR

(v) RYUHR

(5)

(b)

Find the number of triangles in the following two images:

(i) __________________

(ii) __________________

(5)

Note: The original PDF contains graphical images for this question. The text extraction does not reproduce those images.

(c)

Calculate the total area and perimeter of the given shape.

(5)

Note: The original PDF contains a graphical shape for this question, which cannot be represented accurately as plain text.

(d)

Find the missing numbers in the given series.

(i) 4, 18, ?, 100, 180, 294

(ii) 15, 31, 63, 127, ?

(iii) 1, 8, 27, 64, 125, ?

(iv) 132, 156, ?, 210, 240

(v) 8, 24, 12, 36, 18, 54, ?

(5)

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PART-II

SECTION-A

Q. 2

(a)

On 7th April 2012 an Avalanche hit a Pakistan military base in Gayari sector trapping 140 soldiers and civilians under deep snow.

What is Avalanche; describe its four types with focus on most dangerous type?

(5)

(b)

What do you understand by Global Wind and Pressure patterns? Also explain wind and pressure features at higher altitude.

(5)

(c)

World largest earthquake was assigned a magnitude of 9.5 by the United States Geological Survey on 22 May 1960 in southern Chile Valdivia.

What do you know about earthquake? Also explain shallow-focus and deep-focus earthquakes.

(5)

(d)

Differentiate between the renewable and non renewable energy sources. Briefly explain Geothermal Energy and Hydro Electricity.

(5)

TOTAL: (20)

Q. 3

(a)

What are Pesticides? Explain their different types; why persistent pesticides are more lethal for mankind?

(5)

(b)

What are carbohydrates? Classify and give detail of each class along with examples.

(5)

(c)

Discuss different methods of Food preservation.

(5)

(d)

Where and how Fiber Optics are used? Also write down their advantages and disadvantages.

(5)

TOTAL: (20)

Q. 4

(a)

Briefly describe the various segments of atmosphere. How these segments are maintaining the Earth Radiation Balance?

(5)

(b)

How the organic particulate matter enters in the atmosphere. Also describe the sources?

(5)

(c)

What is natural radioactivity? How it is different from the artificial radioactivity?

(5)

(d)

What are the Fossils? Discuss the importance of paleontology.

(5)

TOTAL: (20)

Q. 5

(a)

What do you know about Hepatitis? Describe its types and write down preventive measures.

(5)

(b)

Differentiate between Middle Latitude Cyclones and Tornadoes.

(5)

(c)

What is Open System Interconnections (OSI) and describe its layers?

(5)

(d)

What is GPS? How does it work?

(5)

TOTAL: (20)

SECTION-B

Q. 6

(a)

Tariq can do a tailoring job in 6 hours. Sajid does the same job in 4 hours. Irfan does it in 8 hours.

Tariq and Sajid start doing the work. Sajid leaves after two hours and Irfan replaces him.

How long would it take to complete the work?

(5)

(b)

Find the missing number to complete each sum.

(a) 9 + 8 – 5 = 2 × (_____________)

(b) 3 × 9 – 14 = 24 – (_____________)

(c) 15 ÷ 3 × 12 = 41 + (_____________)

(d) 24 ÷ 4 + 5 = 66 ÷ (_____________)

(e) 8 × 6 – 13 + 3 = 7 × 6 – (_____________)

(5)

(c)

There are seven students in a group having ages:

17, 17, 18, 18, 18, 19, 19

Calculate mean, median, mode and range of their ages. Also define these mentioned terms.

(5)

(d)

How does mental ability scales differ from IQ test?

(5)

TOTAL: (20)

Q. 7

(a)

Mushtaq, Pervaiz, Ehsan, Umair and Saleem are friends having different heights and weights.

Mushtaq weighs four times as much as Pervaiz and Pervaiz weighs double than Ehsan. Ehsan weighs half as much as Umair and Umair weighs half as much as Saleem.

Answer the following:

(i) Who is the heaviest among five friends?

(ii) Who is the second heaviest?

(iii) Who has lowest weight?

(iv) Who are equal in weight?

(v) Mention the descending order.

(5)

(b)

A farmer needs to build a boundary wall around his farm. If the area of farm is 484 m², what will be the total area of the wall if it is two meters high on three sides and three meters high on one side?

(5)

(c)

Five girls A, B, C, D, E and four boys W, X, Y, Z have to go to a trip in three cars, car-1, car-2 and car-3.

The following restrictions for seating in car are to be observed:

(i) Only three persons can sit in one car.

(ii) At least one boy and one girl must be in each car.

(iii) A and D should remain together.

(iv) Z cannot sit with B or C in the same car.

Distribute boys and girls in three cars.

(5)

(d)

What are social skills? Describe four causes of weak social skills.

(5)

TOTAL: (20)

Q. 8

(a)

What do you understand by systematic sampling? Discuss its types.

(5)

(b)

Blood groups of inhabitants of a village were checked.

It was found that:

• 600 people possessed blood group A.
• 650 possessed blood group B.
• 550 had blood group AB.
• 200 have blood group O.

Calculate:

(i) The probability of having blood group B.

(ii) The probability of having blood group O.

(5)

(c)

A group of 50 men can construct 20 kilometer road in 40 days.

How long will 70 men take to complete the same length of road?

(5)

(d)

Zahid left a property worth Rs. 1,750,000.

His family had to pay off a debt of Rs. 150,000. The rest of the money was distributed between a son and a daughter.

How much did each child receive if the share of a son was double than that of a daughter?

(5)

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PART-II

SECTION-I

Q.2

(a)

Deficiency of vitamins causes different human diseases. Some of these are given in the table below. Choose the correct type of vitamin from the box and write in front of each disease.

(5)

Vitamins:

• Vit. A
• Vit. B1
• Vit. C
• Vit. D
• Vit. E
• Vit. K

(b)

People suffering from cardiovascular disease having high level of cholesterol in their blood, this often leads to build-up of fats on its internal arterial walls. Suggest how this might be harmful to the heart.

(5)

(c)

Why should the excessive use of chemical fertilizers be avoided?

(5)

(d)

Why are Scientists worried about the increase of CO₂ in the atmosphere?

(5)

Q.3

(a)

Differentiate between the renewable and non-renewable sources of energy, giving an example of each one of them.

(5)

(b)

Give a brief account of optic fibers. What is their importance in present-day telecom system?

(5)

(c)

What is the most dangerous part of a hurricane and how do cyclones affect humans?

(5)

(d)

What is the difference between vaccines and antibiotics? How do antibiotics and vaccines contribute to health?

(5)

Q.4

(a)

What is the importance of forests in the economy of a country?

(5)

(b)

Give a brief account of biotechnology.

(5)

(c)

Do the mammals always lay eggs? If yes, where in the world do they live? Write the names of some of them.

(5)

(d)

How can the Sun have such a strong gravitational field if it is made of gases?

(5)

Q.5

(a)

What does Ozone depletion mean and how can we protect the ozone layer?

(5)

(b)

What are the different types of a network? Explain each briefly.

(5)

(c)

Why can an indiscriminate / casual use of antibiotics prove dangerous?

(5)

(d)

Why do atoms form bonds? Name three major types of chemical bonds.

(5)

SECTION-II

Q.6

(a)

Moiz was trying to sleep one night, but there was too much noise around him. His clock ticked every 5 seconds; a tap was dripping every seventh second and a pet dog snored every 12th second. He noticed on his clock that all three things happened together on the stroke of midnight.

Find after how many seconds the three things will happen together again.

(5)

(b)

One pipe can fill a pool 1.25 times as fast as the second pipe. When both pipes are opened, they can fill the pool in five hours.

How long will it take to fill the pool if only the slower pipe is used?

(5)

(c)

The cost of hiring a car for 2 days in 2018 was Rs. 264, which was 20% more than in 2013.

What was the cost of hiring a car in 2013?

(5)

(d)

What do you understand by measure of central tendency? State its types.

(5)

Q.7

(a)

Moiz and Mair share a lottery win of Rs. 2,000 in the ratio of 1 : 4.

Moiz then shares his part between himself, his wife and his son in the ratio of 4 : 5 : 1.

How much more does his wife get over his son?

(5)

(b)

A farmer keeps hens and rabbits on his farm. One day he counted a total of 70 heads and 196 legs.

How many more hens than rabbits does he have?

(5)

(c)

What is a polygon? Describe different types of regular polygons.

(5)

(d)

In a certain code, COMPUTER is written as FRUVQNPC.

How will MEDICINE be written in the code language?

(5)

Q.8

(a)

Seven piano students T, U, V, W, X, Y and Z are given a recital and their instructor is deciding the order in which they will perform. Each student will play exactly one piece, a piano solo.

In deciding the order of performance, the instructor must observe the following restrictions:

1. X cannot play first or second.
2. W cannot have played until X has played.
3. Neither T nor Y can play seventh.
4. Either Y and Z must play immediately after W.
5. V must play immediately after, or immediately before, U.

(b)

U = {Whole numbers from 10 to 24}

A = {Even numbers}

B = {Numbers divisible by 5}

Write down the number of elements of:

A ∩ B

(5)

(c)

In the following diagram:

• A represents Americans
• S represents Scientists
• P represents Politicians

Answer the following:

(i) Americans who are politicians but not scientists will be ________.

(ii) Scientists who are politicians but not Americans will be ________.

(5)

(d)

Each packet of washing powder carries a token, and 4 tokens can be exchanged for one free packet.

How many free packets will I receive if I buy 64 packets?

(5)

DIAGRAM — Q.8(c)

The PDF includes a Venn-diagram-style figure representing the three sets:

A = Americans
S = Scientists
P = Politicians

The numbered/lettered regions are shown in the original paper.

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PART-II

SECTION-I

Q. No. 2

(A)

Describe different methods to estimate the age of the Universe.

(5)

(B)

Explain the formation of Lunar Eclipse.

(5)

(C)

Explain the terms Dark Energy and Dark Matter.

(5)

(D)

Define the term Black Hole. What's expected inside it?

(5)

TOTAL: (20)

Q. No. 3

(A)

Describe different causes and preventions of Polio.

(5)

(B)

Define the term Bio-Fuel. How is it helpful to promote clean energy?

(5)

(C)

Define Carbohydrates. Describe different steps to digest these in the human body.

(5)

(D)

Describe the Cell Structure. Write down at least three differences between an animal cell and plant cell.

(5)

TOTAL: (20)

Q. No. 4

(A)

What is Acid Rain? Describe its causes and how it can be prevented?

(5)

(B)

What is Water Pollution? Discuss its causes and measurement methods. Name the countries with the highest and lowest percentage of it.

(5)

(C)

Write a comprehensive note on Smog.

(5)

(D)

Describe different causes of Tsunami. Is there any difference between a Tsunami and a tidal wave? Name the worst Tsunami ever recorded.

(5)

TOTAL: (20)

Q. No. 5

(A)

Write a note on how data is stored on a Hard Disk.

(5)

(B)

How is an Optical Fiber constructed? How is it helpful in transmitting the electromagnetic radiations?

(5)

(C)

Write a comprehensive note on Balanced Diet.

(5)

(D)

What is Artificial Intelligence? How is it helpful for humanity?

(5)

TOTAL: (20)

SECTION-II

Q. No. 6

(A)

It takes 3 liters of paint to cover an area of 24 square meters. What percentage increase in the quantity of paint would be required to cover an area of 50.4 square meters?

(5)

(B)

An automobile travels 3 km towards south, 4 km towards west, 5 km towards north and 2 km towards south-east.

How far is it from its starting position?

(5)

(C)

Tahir started a business with a capital of Rs. 15,000. After 5 months Umar also joined him with an investment of Rs. 30,000. At the start of the 9th month, Usman joined them by investing Rs. 45,000.

At the end of the year they earned a profit of Rs. 406,000.

Find the share of each one.

(5)

(D)

A man left his property of Rs. 640,000. A debt of Rs. 40,000 was due to him and Rs. 5,000 was spent on his burial.

Distribute the amount between his widow, one daughter and two sons according to the Islamic Law.

(5)

TOTAL: (20)

Q. No. 7

The breakdown of average monthly expenditure for a family is given in the following figure:

(A)

Calculate from the figure what percentage of the family's expenditure is on "Other"?

(5)

(B)

Approximately what fraction of the family's monthly expenditure do "Utilities", "Rent" and "Food" represent?

(5)

(C)

If the family spends Rs. 11,600 on utilities, how much is the family's total expenditure?

(5)

(D)

"Other" expenditure comprises savings, entertainment and luxury items, which are spent in the ratio 3 : 4 : 1.

Calculate how much the family saves each month if monthly income is Rs. 24,000.

(5)

TOTAL: (20)

Note: The PDF references a figure for this question, but the extracted text does not contain the actual graphical figure.

Q. No. 8

(A)

Police officers are in pursuit of a stolen vehicle.

Officer Baker is directly behind the stolen car. Officer Lopez is behind Baker; Officer O'Malley is behind Lopez. Officer Reinhart is ahead of the stolen car and coming from the opposite direction.

Officer Reinhart makes a U-turn and joins the pursuit. He pulls in behind Officer Lopez. Officer Baker pulls up on the driver's side of the stolen vehicle and Officer Lopez pulls up on the other side.

Which officer is directly behind the vehicle?

(5)

(B)

Define a Histogram. How is it constructed? What information may be deduced from it?

(5)

(C)

Look at this series:

F2, __, D8, C16, B32

What number should fill the blank?

(5)

(D)

In a certain code language LANDMINE is written as PYRBQGRC.

How will HOMEMADE be written in that code language?

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PART-II

SECTION-I

Q. No. 2

(A)

What are the factors responsible for environmental pollution?

(5)

(B)

Briefly explain the main reasons of water-logging in Pakistan.

(5)

(C)

What do you mean by Ozone depletion and how we can prevent its depletion?

(5)

(D)

What is an Acid Rain and how it is produced. Briefly describe the dangers associated with it?

(5)

Q. No. 3

(A)

Explain in detail the common causes of Heart Attack.

(5)

(B)

Differentiate between drug addiction and drug abuse.

(5)

(C)

Draw the structure of human ear and briefly explain its functions.

(5)

(D)

What is the significance of Vitamins? Describe the sources, uses and deficiency symptoms of fat soluble vitamins.

(5)

Q. No. 4

(A)

What is a mirage? Describe in detail the creation of mirage.

(5)

(B)

Differentiate between the occurrence of Lunar and Solar Eclipse?

(5)

(C)

Briefly explain what effects are produced due to Rotation & Revolution of Earth?

(5)

(D)

Most of the household appliances utilize ‘DC’ then why we generate ‘AC’ at power stations?

(5)

Q. No. 5

(A)

Differentiate between RAM and ROM.

(5)

(B)

Name three basic buses employed in a computer and explain what each is used for.

(5)

(C)

Draw a basic computer block diagram and briefly explain the function of each part.

(5)

(D)

Describe various types of computers classified on the basis of size, memory, capacity and speed.

(5)

Q. No. 6

(A)

Differentiate with examples between a “Pictogram” and “Histogram”.

(5)

(B)

The teachers of a certain school were asked to indicate the average number of hours they spend on marking students assignments each day. The following set of data was obtained:

6, 4, 3, 1, 2, 2, 3, 1, 4

1, 2, 5, 3, 4, 5, 2, 2, 3

3, 1, 2, 2, 3, 1, 4, 2

Construct a frequency table and draw a Histogram illustrating the results.

(5)

(C)

How many teachers responded to the survey?

(5)

(D)

What the longest number of hours and most common number of hours are spent?

(5)

SECTION-II

Q. No. 7

(A)

A man buys 5 kg of meat at Rs. 500 per kg. In addition, for every kilogram of meat purchased, he has to pay a consumption tax of 6% on the selling price.

Calculate the total amount of money that he has to pay.

(5)

(B)

It takes Ali 30 minutes to mark a paper. Aslam only needs 25 minutes to mark a paper. If they both start marking papers at 10:00 AM, at what time will they finish marking at the same time?

(5)

(C)

Two bus tickets from Rawalpindi to Islamabad and three tickets from Rawalpindi to Murree cost Rs. 770, but three tickets from Rawalpindi to Islamabad and two tickets from Rawalpindi to Murree cost Rs. 730.

What are the fares for cities Islamabad and Murree from Rawalpindi?

(5)

(D)

A told B that C is his father’s nephew. D is A’s cousin but not the brother of C.

What relationship is there between D and C?

(5)

Q. No. 8

(A)

Divide Rs. 500 between Arham, Mariam and Sarim so that Arham gets 2/3 of what Mariam gets and Mariam gets ¼ of what Sarim gets.

Find the share of each.

(5)

(B)

A school has enough provision of food for 52 days. After 20 days a group of 400 students arrives and the food would have lasted for 24 days only.

How many students are there in the school actually?

(5)

(C)

A man walks 2 km towards North. Then he turns to East and walks 10 km. After this he turns to North and walks 3 km. Again he turns towards East and walks 2 km.

How far is he from the starting point?

(5)

(D)

In a certain code language COMPUTER is written as RFUVQNPC.

How will MEDICINE be written in that code language?

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PART-II

SECTION-I

Q. No. 2

(a)

What were the main objectives of Clean Development Mechanism? Also explain the reasons for the criticism on Kyoto Protocol by the developed countries.

(5)

(b)

Differentiate between Sanitary and Industrial Landfills, also describe the land selection criteria for Landfills.

(5)

Q. No. 3

(a)

Write a short note on Artificial Intelligence.

(5)

(b)

Write short notes on:

(2½ each)

(i) Fibre Optics

(ii) Global Positioning System

(5)

Q. No. 4

(a)

What are vaccines? Classify these and discuss DNA vaccines in detail.

(5)

(b)

What are causative organism and vector for dengue? Enlist possible ways of prevention from dengue.

(5)

Q. No. 5

(a)

Comment:

“Liver is the chief chemist in human body.”

(5)

(b)

What is Cholesterol? Discuss its importance, normal blood level and dangers of elevated levels with reference to the health and disease in humans.

(5)

Q. No. 6

(a)

What do you know about the Remote Sensing Techniques? Explain resolution and write down the names of its various types.

(5)

(b)

What is hydrological cycle? Discuss its importance.

(5)

Q. No. 7

(a)

What is tsunami? How are tsunamis generated and what are their characteristics?

(5)

(b)

What is an earthquake? Discuss Richter Scale in this context. What was the intensity of the earthquake in Pakistan dated 26 October 2015 and where was the locus?

(5)

Q. No. 8

(a)

Explain the shape of water molecule with the help of Molecular Orbital Theory, also draw its orbital diagram.

(5)

(b)

What are the gamma rays? Explain their applications.

(5)

Q. No. 9

(a)

Discuss importance of preservatives and antioxidants in food.

(5)

(b)

Comment, “Green House Effect is a blessing.” Also discuss Enhanced Green House Effect and its relation with global warming.

(5)

SECTION-II

Q. No. 10

(a)

Define and draw the following:

(2½ each)

(i) Right-angle triangles

(ii) Equilateral triangles

(5)

(b)

There are nine students in a group having ages:

15, 15, 16, 16, 16, 17, 17, 18, 19

Calculate mean, median, mode and range of their ages. Also define the above-mentioned terms.

(5)

Q. No. 11

(a)

A distribution company provides households to departmental stores within a 50 kilometers radius. The table below shows how far each departmental store is from the godown of the distribution company.

Answer the following:

(i) How many stores does the distribution company serve?

(ii) What is the most common distance of stores from the company’s godown?

(iii) How many stores are 35 Km or more from the godown?

(iv) What percentage of stores are 31 Km or more from the godown?

(5)

(b)

Read the following carefully and answer the questions following:

Ahmad, Ali, Akbar, Nasir and Shehbaz are students of a college having different heights and weights.

Ahmad weighs thrice as much as Ali and Ali weighs 5 times as much as Akbar. Akbar weighs half as much as Nasir and Nasir weighs half as much as Shehbaz.

Answer the following:

(i) Who is the heaviest in weight?

(ii) Who is the lightest in weight?

(iii) Shehbaz is lighter in weight than which of the two students?

(iv) Shehbaz is heavier than which of the two students?

(v) Show the descending order of weights of the students.

(5)

Q. No. 12

(a)

Classification of blood groups is based on the presence or absence of inherited antigenic substances on the surface of red blood cells.

In a survey of British population, the blood group distribution among 1000 people was as follows:

• 300 had blood group A
• 325 had blood group B
• 250 had blood group O
• 125 had blood group AB

Out of this group, a person was selected at random. Calculate his probability of having blood group AB.

(5)

(b)

Five friends Ahmad, Ali, Akbar, Nasir and Shehbaz went on summer vacation to five cities namely V, W, X, Y and Z by five different modes of transport, that is by bus, train, aeroplane, car and boat from point A.

Akbar went to Y by car and Ali went to X by air. Nasir travelled by boat whereas Shehbaz went by train.

For X and W there is no bus service. The person who went to X did not use boat to travel.

Now answer the following questions:

(i) How did Ahmad travel and where did he go?

(ii) Which mode of transport was used by the person who travelled to X city?

(5)

Q. No. 13

(a)

Differentiate between primary and secondary mental abilities. How do the general mental ability scales differ from IQ test?

(5)

(b)

Y = mX + C is an equation of straight line.

Draw a graph showing relationship between X and Y and relate the equation to the slope and intercept on the graph.

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