A primary pollutant is defined as __________.
A)a pollutant that is toxic to humans
B)a pollutant that enters the air or water directly from the source
C)a pollutant that has been altered by reactions with other pollutants
D)a pollutant that is emitted by natural sources such as volcanoes

Question

Quizplus · Accepted Answer

A primary pollutant is a pollutant that enters the air or water directly from the source, without being altered or transformed. Examples include carbon monoxide, sulfur dioxide, and nitrogen oxides emitted from vehicles or industrial processes.

A Primary Pollutant Is Defined as __________