Question

We should use coal and petroleum judiciously. Why? State any four reasons.​

Answer 1

Answer:

We should use them judiciously because-

a. They are an important source of fuels. Petroleum products like petrol, diesel etc. are used as fuel in automobiles. Coal is used in thermal power plants to generate electricity and also used as a fuel for domestic purposes.

b. It took millions of years for them to be formed and therefore if used in excess they will soon get exhausted.

c. We should use them judiciously so that our future generations can take benefits from them.

d.Also, burning of these fuels cause pollution, global warming so we should use them wisely.

Answer 2

Answer:

Coal and petroleum were found millions of years ago from the degradation of biomass. These are exhaustible nonrenewable resources. Our known petroleum will last for about forty years and coal resources will last for another two hundred years, so we should use them judiciously. When the fossil fuel is burnt, carbon dioxide, oxides of nitrogen and sulfur and water are formed. If combustion takes place in insufficient air carbon monoxide is formed in place of carbon dioxide. These are all poisonous at high concentration.

Explanation:

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