CBSE Class 9 Biology Natural Resource Air

Q.

Which of the following plays a basic role in atmospheric climate control?



Q.

What is the medium of absorption in the ozone layer for UV radiation?



Q.

Which of the following is the major constituent in Venus and Mars?



Q.

Marine animals use carbonates



Q.

When air is heated by the Sun, the area created is called



Air

Understand the composition of air and role of atmosphere. Effects of pollution of air such as acid rain and smog.