High concentration of which gas will not cause air pollution ? a) oxygen b)nitrogen dioxide c)carbon dioxide d)carbon monoxide

High concentration of which gas will not cause air pollution ?
a) oxygen b)nitrogen dioxide c)carbon dioxide d)carbon monoxide
by

1 Answer

Answer :

a) oxygen
by

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An example of major air pollutant is – (1) Oxygen (2) Carbon monoxide (3) Helium (4) Carbon dioxide

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The gas released during photosynthesis : (1) Carbon dioxide (2) Oxygen (3) Carbon monoxide (4) Sulphur dioxide

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