Question

A) Answer the Questions

Question 1.

What do you mean by acid rain? How does it affect both living and non-living things?

Question 2.

What is eutrophication? How does it affect aquatic organisms?

Question 3.

Write a short note on water pollution.

Question 4.

How can you prevent water pollution?

Question 5.

How can you prevent air pollution?

Question 6.

Name various techniques used for purification of water.

Complete the crossword puzzle with the help of clues given below:

Question 7.

What do CFCs stand for? Name some devices where CFCs are used. Why CFCs are

considered as pollutants?

Question 8.

Why is it advised that industries should switch over to cleaner fuels such as CNG and

LPG in the Taj Mahal Zone in Agra?​

Answer 1

1 - Rains caused by dissolved sulphur in our environment that mixes with rain ex living things- aquatic life fish reproduction process dies or stops below ph of 5. Non living things-like monuments like Taj Mahal gets corroded.