Question

Cbse important questions of chapter pollution of air and water in examination​

Answer 1

Important Questions of Air and Water Pollution:-

Air:-

1. Name any two green house gases.
2. State any 5 consequences of global warming.
3. State the causes of Acid Rain.
4. Why Acid Rain is caused? Explain the formation of acid rain giving any 5 points.
5. What is Marble Cancer? (Marble Cancer is the phenomenon of marbles that if acid rain if are in contact, slowly looses it's white colour and changed into yellowish colour)
6. Write a short note on "Protection of Earth is only in humans' hand."
7. Write some basic features of CNG powered vehicles.
8. Explain the formation of Smog. Write it's bad effects.

Water:-

1. Why is our conservation of water necessary? Suggest and three steps (read 5 for better performance) to conserve it.
2. "Some cases, sewage water treatment is not done but at that state, it is left to water bodies." Write any five points to reuse it and purify it for efficient utilisation.
3. Write any five conditions to show that the given water is impure. (Answer in attachment)
4. Write any 10 major water pollutants.
5. Show the process of filtration of water in traditional water filter with a suitable diagram.

Answer 2

Explanation:

name any green house gases

green house effect