What percentage of water on the earth is fresh?

The natural resource which is made up of  stones, sand, clay, dead plants  and animals matters is:

Exhaustible resources are present in:

Which is a fossil fuel?

Which is used to produce energy?

Which energy source can be reproduced?

The prime source of  energy on Earth is the:

What is water fit for drinking called?

A non-renewable source of energy is:

Which is present in unlimited quantity in nature?