Explain renewable and nonrenewable sources of energy and mention the advantage of such classification.?

ANS:


* Those sources of energy which will be available as long as the heat from sun reaches the earth are called renewable sources of energy.

* The renewable sources are generally pollution-free.

* Solar energy, hydel energy, wind energy, tidal energy, etc. are renewable sources of energy.

* Those sources of energy whose formation takes millions of years and which are limited in supply are called nonrenewable sources of energy.

* Nonrenewable sources create heavy pollution.

* Coal, petroleum, natural gas, etc. are nonrenewable sources of energy.

* The advantage of such classification of energy sources is that it helps us to decide about the conservation of available energy sources for future generation.

* It also helps us in development of alternative sources of energy accelerating the scope for the development of appropriate technology