The presence of water vapour in the air is called

Plants use solar energy and convert it into

A ___________ shows who eats what in nature.

The used up ground water is restored by __________ seeping into the ground.

What is complex network of a food web?

The area reserved for the welfare of wild animal is called

The response of organism to the cycles of day and night is known as

____________ is called green house gas.

Which animal widely hunted for its skin?

A type of animal that no longer exists on the earth is said