Question
The presence of solid, liquid or gaseous compounds, which may not be normally present, or in excess concentration in the atmosphere is called ___ .
Answer: Option A
:
A
The presence of solid, liquid or gaseous compounds, which may not be normally present, or in excess concentration in the atmosphere is calledair pollution.
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:
A
The presence of solid, liquid or gaseous compounds, which may not be normally present, or in excess concentration in the atmosphere is calledair pollution.
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