Give four ways in which air can be conserved.

Important Questions on Pollution of Water and Air

EASY

8th CBSE

IMPORTANT

Living Science 8>Chapter 19 - Pollution of Water and Air>EXERCISES>Q E

How does the use of excess fertilizers and pesticides affect water bodies?

EASY

8th CBSE

IMPORTANT

Living Science 8>Chapter 19 - Pollution of Water and Air>EXERCISES>Q E

Discuss the different methods available to us for making water potable by killing germs.

MEDIUM

8th CBSE

IMPORTANT

Living Science 8>Chapter 19 - Pollution of Water and Air>EXERCISES>Q E

How is water treated at the waterworks to make it potable?

MEDIUM

8th CBSE

IMPORTANT

Living Science 8>Chapter 19 - Pollution of Water and Air>EXERCISES>Q E

List the main pollutants of air and give the ill effects of each.

EASY

8th CBSE

IMPORTANT

Living Science 8>Chapter 19 - Pollution of Water and Air>EXERCISES>Q 1

Do you think acid rain also affects crops?

MEDIUM

8th CBSE

IMPORTANT

Living Science 8>Chapter 19 - Pollution of Water and Air>EXERCISES>Q 2

Air pollution in Delhi improved after CNG was introduced instead of diesel in public transport since CNG gives out less smoke. Introduction of metro in Delhi is also expected to reduce pollution. How?

MEDIUM

8th CBSE

IMPORTANT

Living Science 8>Chapter 19 - Pollution of Water and Air>EXERCISES>Q 3

What kind of groundwater is more likely to be polluted, that found near the surface of the earth or that found deeper?

MEDIUM

8th CBSE

IMPORTANT

Living Science 8>Chapter 19 - Pollution of Water and Air>EXERCISES>Q 4

Afforestation leads to both air and water conservation, as well as soil conservation. How?