Question

why is there a need to harness non conventional source of energy give two main reason

Answer 1

there is need to harness non conventional source of energy because
1. conventional sources are going to depleted soon if they are exploited rapidly. Hence, alternative sources of energy is necessary
2. Also to cater the rising demand , it is mandatory to look upto the non conventional sources of energy.

Answer 2

1)energy demand is increasing rapidly due to population explosion and urbanization
2)fossil fuels are depleting at Rapid rate