Conventional sources of energy are

A. Agricultural Waste
B. Solar Energy
C. Coal
D. Petroleum
E. Electricity

Choose the correct answer from the options given below:

A, C, D and E only

The correct answer is Option 1: A, C, D and E only

Sources of Energy: There are commercial and non-commercial sources of energy. Commercial sources are coal, petroleum and electricity as they are bought and sold. Non-commercial sources of energy are firewood, agricultural waste and dried dung. These are noncommercial as they are found in nature/forests. While commercial sources of energy are generally exhaustible (with the exception of hydropower), non-commercial sources are generally renewable.

Both commercial and non-commercial sources of energy are known as conventional sources of energy. There are three other sources of energy which are commonly termed as non-conventional sources — solar energy, wind energy and tidal power.