Give the names of two energy sources that you would consider to be exhaustible

Q No. 2:

Give the names of two energy sources that you would consider to be exhaustible. Give reasons for your choices.

Ans:

Two exhaustible energy sources are as follows:

(a)       Coal: It is produced from dead remains of plants and animals that buried under the earth’s crust for millions of years ago. It takes millions of years to produce coal. It means coal cannot replenish within a short period of time. So it is a non-renewable or exhaustible source of energy.

(b)  Wood: It is obtained from forests. Forests are decreasing at very fast rate due to deforestation. If deforestation is continued at this rate, then there would be no wood left on the Earth. Hence, wood is an exhaustible source of energy.