Which of the following non-conventional sources of energy holds out the maximum promise in India?

Answer: Option A

Solar Energy non-conventional sources of energy holds out the maximum promise in India. Solar energy is harnessed by converting solar energy directly into electrical energy in solar plants. Photosynthesis process carries out this process of conversion of solar energy. In photosynthesis, green plants absorb solar energy and convert it into chemical energy. Solar energy is an essential energy of all non-conventional sources but its usage amount is very less. It is the most important non-conventional source of energy and it gives non-polluting environment-friendly output and is available in abundant.