Combustion of coal forms

Sulphur oxides

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Nitrogen oxides

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Carbon oxides

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All of the above

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Solution

The correct option is C All of the above
Coal is made up of carbon. When burnt it releases nitrogen oxides, sulphur dioxides, carbon oxides, particulate matter, mercury etc. These pollutants have a wide range of environmental degrading implications like carbon oxides are greenhouse gases, sulphur and nitrogen oxides form the acid rain, the particulate matter stays in the air to cause respiratory illness etc.
Hence, the correct answer is 'All of the above'

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