Coal is a fossil fuel and it cannot be prepared in a laboratory or industry. Because of the formation of coal:
a. is a very slow process.
b. needs very low pressure and low temperature.
c. needs very high pressure and high temperature.
d. causes air pollution.
Select the correct alternatives.

a, c and d

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b and d

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c and a

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d and c

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Solution

The correct option is A a, c and d
Coal is a fossil fuel derived from organic matter. We get coal deep inside the Earth's crust in coal mines. When dead plants got buried into the bottom of the soil. Due to high pressure and temperature plants get converted into fossil fuels. If it burns in large quantity it causes air pollution.

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Coal is a fossil fuel and it cannot be prepared in a laboratory or industry. Because of the formation of coal:a. is a very slow process.b. needs very low pressure and low temperature.c. needs very high pressure and high temperature.d. causes air pollution.Select the correct alternatives.

Coal is a fossil fuel and it cannot be prepared in a laboratory or industry. Because of the formation of coal:
a. is a very slow process.
b. needs very low pressure and low temperature.
c. needs very high pressure and high temperature.
d. causes air pollution.
Select the correct alternatives.