Question

Primary Pollutants persists in air in which form?
(A) Organic
(B) Inorganic
(C) As suspended Particulate matter
(D) Remain Unchanged
​

Answer 1

HI

Primary Pollutants are passed into environment in the form they are produced. They persist in the form they are released in the environment. When they are released in the air, they pose health risks in their unmodified forms or those emitted directly from identifiable sources.

So, option (D) is the correct answer.

Hope it proved to be beneficial...