Which forest in South America is the world's largest tropical rain forest ?

Which are the resources that will never run out ?

Nature has gifted our earth with many.

Natural resources are divided into.

The world's largest tropical rain forest 'The Amazon forest' is situated in :

Which among the following is known as black gold ?

A renewable resources.

Exhaustible resources are also known as :

Which resource is derived from the environment ?

What is called the resources of the future ?