which of the following is a secondary pollutant? Options: A . &nbsp NO B . &nbsp CO C . &nbsp S O 2 D . &nbsp Phenols

which of the following is a secondary pollutant?

Question -

which of the following is a secondary pollutant?

Options:

A . NO

B . CO

C .

S O_{2}

D . Phenols

Answer: Option D
:
D
Phenol is a secondary pollutant

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