Which rain forest is also known as Amazonia?

Exhaustible resources are also known as :

Name the important source of power ?

What is called the resources of the future ?

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

Which among the following is known as black gold ?

Which among the following are materials and components that can be found within the environment ?

Resources which satisfy human needs are called.

Inexhaustible resources are also known as.

The resources whose quantity on the earth is fixed and which cannot be produced in short time periods are known as :