1. The primary source of organic pollution in fresh water bodies is

2. Maximum soot is released from

3. Which of the following cities has been worst affected by urban smog in recent times?

4. Surface Ozone is produced from

5. Schistosomiasis, a common water contact disease, is spread by which of the following?

6. Assertion (A): Methemoglobinemia is a condition in which blood is not able to carry and deliver enough oxygen to the body. Reason (R): Consuming drinking water with high nitrate levels may cause methemoglobinemia. Choose the correct answer from the options given below:

7. Blue – baby syndrome can happen due to excess of which component in water?

8. Climate change has implications for
1. soil moisture 2. forest fires
3. biodiversity 4. ground water Identify the correct combination according to the code : Codes :

9. Match the following classes of chemicals with their descriptions; (Chemical Class) (Description)
(A) Allergens (i) Chemicals that alter or damage the genetic material (DNA) cells
(B) Mutageus (ii) Substances that activate the immune system
(C) Carcinogens (iii) Chemicals that specifically cause abnormalities during embryouics growth and development.
(D) Teratogens (iv) Substances that cause invasive out control cell growth resulting in malignant tumors. Choose the most appropriate option from those given below:

10. Which of the following diseases are due to polluted water?
(1) Giardia (2) Dengue
(3) Amoebiasis (4) Typhoid Choose the correct answer from the options given below:

11. Schistosomiasis, a common water contact disease, is spread by which of the following?

12. Among the following air pollutants which directly impacts human health as well as climate?

13. Which of the following cities has been worst affected by urban smog in recent times?

14. With increase in temperature, the dissolved oxygen content in a water body will:

15. Maximum soot is released from

16. The constituents of photochemical smog responsible for eye irritation are

17. Irritation in eyes is caused by the pollutant

18. Which of the following pollutants affects the respiratory tract in humans?

19. Climate change has implications for
1. soil moisture 2. forest fires
3. biodiversity 4. ground water Identify the correct combination according to the code : Codes :

20. The main precursors of winter smog are

21. What is the long term effect of cutting down larger areas of rain forests?

22. What is the long term effect of cutting down larger areas of rain forests?

23. Identify the correct group of diseases caused by polluted water