Name six chemical pollutants of water.

Important Questions on Pollution of Air and Water

EASY

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 16 - Pollution of Air and Water>Exercises>Q A

 Name four water-borne diseases.

MEDIUM

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 16 - Pollution of Air and Water>Exercises>Q A

What do you mean by potable water?

MEDIUM

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 16 - Pollution of Air and Water>Exercises>Q A

How is activated charcoal made and what is its role in the purification of water?

MEDIUM

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 16 - Pollution of Air and Water>Exercises>Q A

Why is bleaching powder used for in the purification of water?

EASY

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 16 - Pollution of Air and Water>Exercises>Q B

How does carbon monoxide affect us?

EASY

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 16 - Pollution of Air and Water>Exercises>Q B

What is the advantage of using CNG in preference to petrol or diesel in automobiles?

MEDIUM

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 16 - Pollution of Air and Water>Exercises>Q B

Discuss three methods of preventing water pollution.

MEDIUM

8th CBSE

IMPORTANT

Basic Science for Class 8>Chapter 16 - Pollution of Air and Water>Exercises>Q C

Name three pollutants (except dust and soot) of air and mention their sources.