Question

Name two source of energy which you considered to be non renewable give reason for your choice

Answer 1

Answer:

Coal: coal is most important non renewable energy resources. They are formed from the dead of marine animals, plants and land animals deep buried for millions and millions of years under High pressure and extreme temperature deep inside the earth. Coal is a non renewable source of energy because they cannot be renewed in a short period of time. There are mainly 3 types of coal.

Petroleum :it is also obtained from the dead animals buried. It is used for making most important lubricating agents and is used as very important raw materials for production of petrochemical products. Hence, it is non renewable too.

Explanation:

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Answer 2

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Two exhaustible energy sources are as follows:

i) Coal: It is produced from dead remains of plants and animals that remain buried under the earth’s crust for millions of years. It takes millions of years to produce coal. Industrialization has increased the demand of coal. However, coal cannot replenish within a short period of time. Hence, it is a non-renewable or exhaustible source of energy.

ii) Wood: It is obtained from forests. Deforestation at a faster rate has caused a reduction in the number of forests on the Earth. It takes hundreds of years to grow a forest. 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.