Why is natural resources been used indiscriminately?

A non-renewable source of energy is:

Exhaustible resources are classified into:

Acid rain mainly contains  nitric acids and:

Which of the following is not  a consequence of global warming?

A renewable exhaustible natural resource is:

The prime source of  energy on Earth is the:

Which is the largest source of fresh water on earth?

Which is a fossil fuel?

What is water fit for drinking called?