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

(N/A) Two exhaustible energy sources are as follows:
$(a)$ Coal: It is produced from the dead remains of plants and animals that have remained buried under the Earth's crust for millions of years. It takes millions of years to form coal. Industrialization has increased the demand for coal. However,coal cannot replenish within a short period of time. Hence,it is a non-renewable or exhaustible source of energy.
$(b)$ Wood: It is obtained from forests. Deforestation at a rapid rate has caused a significant reduction in the number of forests on the Earth. It takes hundreds of years for a forest to grow. If deforestation continues at this rate,there will be no wood left on the Earth. Hence,wood is an exhaustible source of energy.