Which among the following lives in areas where the sun penetrates deep into the waters? 

The plant and animal communities of the biosphere living in a particular territory is called :

Which one of the following is known as the Savannah?

What is the combination of the three spheres where life forms exist and interact with each other and with their environment? 

Which among the following is a large area of trees and plants growing closely together? 

Fish, whales, seals are :

Which of the following extends across North America and Eurasia in a wide belt? 

Lakshadweep island are entirely made of :

Plants living in desert are called :

What covers 11% of the world area?