Question

State TRUE or FALSE.
1. Excess growth of weeds and algal bloom is called eutrophication.
2. Oil spillage in water endangers the life of marine plants and animals.
3. We can minimise air pollution by using leaded petrol.
Chemical treatment involves the use of water filters at homes.
5. Chlorination is a method of air purification.

Answer 1

Answer:

1. False 2. True 3. False 4. False 5. False

Answer 2

Answer:

1. False

2.True

3.False

4.False

5.False