HSSC TGT Urdu Date 30/4/2023 Morning Shift

Total Questions: 50

11. Which of the following gases can be produced from landfill wastes?

Correct Answer: (a) Biogas

12. The solar energy that warms the Earth includes visible, light, infrared, and what coming from the sun?

Correct Answer: (b) Ultraviolet radiation

13. In cultivation, which of the following may be added to increase the ability of the soil to keep the pH stable?

Correct Answer: (c) Limestone

14. Which of the following orders of the food chain is correct?

Correct Answer: (d) Herbivorous, Carnivorous, Omnivorous, Detritivorous

15. Which among these would increase carbon dioxide in the atmosphere?

(i) Deforestation
(ii) Burning of firewood
(iii) Automobiles
Select the correct answer using the codes given below:

Correct Answer: (d) (i), (ii) and (iii)

16. The two components of an ecosystem are:

Correct Answer: (c) Biotic and abiotic factors

17. The biotic environment includes:

Correct Answer: (d) All of the above

18. The salt concentration of the water bodies is measured in:

Correct Answer: (a) Parts Per Thousand

19. Inverted pyramid of numbers is found in:

Correct Answer: (a) Parasitic ecosystem

20. The tendency towards increased variety and density of species at community junction is known as:

Correct Answer: (a) Edge effect