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Question
Which of these gases is not considered as a pollutant?
Which of these gases is not considered as a pollutant?
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Solution
The correct option is B Oxygen
Carbon dioxide, carbon monoxide, sulphur dioxide, nitrogen oxides, chlorofluorocarbons (CFCs) etc causes air pollution. Hence they are considered as air pollutants.
Whereas oxygen helps for the survival of life, so it is not a pollutant.
Carbon dioxide, carbon monoxide, sulphur dioxide, nitrogen oxides, chlorofluorocarbons (CFCs) etc causes air pollution. Hence they are considered as air pollutants.
Whereas oxygen helps for the survival of life, so it is not a pollutant.
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