CSS 2025 General Science & Ability Past Paper

Paper details

Examination

CSS

Year

2025

Subject

General Science & Ability

Paper

Single Paper

Subject type

Compulsory

Mode

Subjective

Questions recorded from this paper

These 7 question wordings are transcribed from CSS Vista’s structured General Science & Ability past-paper record for CSS 2025.

1. Q2 · Electromagnetic Radiations(a) What effects are produced due to Rotation & Revolution of Earth? Explain (5) briefly. (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 (5) produce? (d) Explain the advantages and disadvantages of nitrogen containing fertilizers and (5) (20) insecticides.
2. Q3 · Hepatitis(a) Explain how temperature and light intensity affect the rate of photosynthesis in (5) plants. (b) Describe the structure and functions of capillaries in the human blood circulatory (5) system. (c) What is hepatitis? Give its types and briefly explain its common symptoms along (5) with preventions. (d) Differentiate between biomass and biogas. Briefly explain various methods for (5) (20) obtaining energy from biomass.
3. Q5 · Sources(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? (5) Describe the main branches of Artificial Intelligence. (d) What are the advantages of optical fibers in communication system? Draw basic (5) (20) structure of optical fiber and explain propagation of light through it.
4. Q4 · Water Pollution:- Types(a) What is deforestation? State the disadvantages caused to the environment due to (5) this. (b) Explain how water pollution is produced? Describe the part played by bacteria after (5) a river has been polluted by sewage. (c) State some examples of pollution caused by human activity and discuss the effects (5) of each example. (d) What does air pollution means? State ten serious effects of air pollution on the (5) (20) environment and briefly explain how they can be reduced?
5. Q8 · Quantitative Ability/Reasoning(a) A train in first five successive minutes from its start runs 68m, 127m, 208m, (5) 312m and 535m and for next 5 minutes maintains an average speed of 33km/hr. Find the whole distance covered and the average speed in covering this total distance. (b) A solid cuboid with base 10cm by 6cm is available. The height of the cuboid is (5) ‘y’ centimeter and the total surface area of the cuboid is given to be 376cm2. Find the height of the cuboid. (c) In a six member family (A, B, C, D, E and F), there are two fathers, three (5) 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? (d) How many prime numbers are between each of the following pairs of numbers? (5) (20) a) √3 and √120 b) √10 and √410 c) √10 and √999 d) √28 and √120 e) √8 and √400
6. Q6 · Integrated / Cross-Syllabus Questions(a) In an annual sale, Saima buys a Fridge and a Freezer. The sale offers 15% off (5) 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? (b) Mr. Rasheed pays a deposit of Rs. 60,000/- followed by 36 equal monthly (5) payments. The total amount that he pays is 127% of the basic price of Rs. 3,360,000/-. Calculate Rasheed’s monthly payment. (c) Divide Rs. 600/=among A, B and C so that Rs. 40 more than 2/5 of A’s share, (5) Rs. 20 more than 2/7 of B’s share and Rs. 10 more than 9/17 of C’s share may be equal. (d) Find out the correct words from the jumbled spellings given below. (5) (20) (i) TEANAIRM (ii) VAGNACEXETRA (iii) VADIELTIONC (iv) PKUNYBARTC (v) TAESROSNC
7. Q7 · Integrated / Cross-Syllabus Questions(a) Calculate the marked price of the sculpture if it is sold for Rs.79950/- after a discount of (5) 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.79950/-? (b) Majid pays a total of Rs.51520/- for his car insurance. The total is made up of a basic (5) charge plus 15% sales tax. Calculate the amount of sales tax that Majid pays. (c) A camp site in the shape of a rectangle has sides (3x+6) m and (x+1) m and the length of (5) the diagonal is (4x+1) m. Find the area and the perimeter of the camp site. (d) Arrange the following fractions in the descending order. (5) (20) 7 4 9 25 5 7 5 13 6 5 2 4 (a) , , , (b) , , , (c) , , , (d) , , , , (e) , , , ,

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