Question

What would be the most promising source of energy fifty years from now and why?
(a) Petroleum energy, because it is obtained from fossil fuels.
(b) Solar energy, because it is not exhaustible.
(c) Coal based energy, because it is pollution- free.
(d) Forest product based energy, because India has abundant forests.

Answer 1

Solar energy will be the most promising source of energy fifty years from now because it is not exhaustible.

What are non-exhaustible energy sources?

• Non-exhaustible sources of energy are those that are renewable and can be replenished with the passage of time.
• For example sun, water and wind are renewable energy sources.
• These sources will never end over time no matter how much they are consumed.

So, the correct answer is B.

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