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Question

Primary pollutant is the one, which.

A
Enters environment directly
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B
Is formed naturally
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C
Is byproduct of reactions between two or more pollutant components
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D
Is anthropogenic
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Solution

The correct option is A Enters environment directly
Primary pollutants are pollutants or contaminants which enter directly into the environment and it's slightest of presence becomes undesirable.
They are produced directly and enter directly into the environment. They are hazardous in their natural state and infect directly.
So, the correct option is 'Enters environment directly'.

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