Sources of Energy

A substance; which can be utilized to produce energy, conveniently and economically; is called a fuel. Fossil fuels; like coal and petroleum are the main sources of energy for us. But burning of fossil fuels causes air pollution. Moreover, they are exhaustible in nature and are predicted to be finished off in the foreseeable future. Renewable sources of energy; like solar energy, hydel energy, wind energy, etc. need to be developed on a large scale so that our dependency on fossil fuels can be reduced. Nuclear energy is also a better option but it carries the risk of leakage of radioactive radiations which has the potential to cause great and long-term damage.

Energy Quiz