Question

Which types of resources of energy are coal, petroleum and natural gas?

विकल्प

• conventional sources

• non-renewable sources

• non-conventional sources

• Both conventional sources and non-renewable sources

Answer 1

Both conventional sources and non-renewable sources

Explanation:

Coal, petroleum, and natural gas are considered conventional energy sources because they have been traditionally used for energy production. They are also non-renewable sources because once depleted, they cannot be replenished on a human timescale.