Question

Which of the following statements about air pollution is not true?
a.
Air pollution is caused by natural and human processes.
b.
Carbon monoxide and sulfur oxides are common air pollutants.
c.
Natural components of air, like carbon dioxide, cannot be considered air pollutants.
d.
Primary and secondary pollutants are harmful to human health and the environment.



Please select the best answer from the choices provided


A
B
C
D

Answer 1

C

Reason: Natural components like carbon dioxide can be considered air pollutants when their concentrations or effects (e.g., greenhouse warming) are harmful, so statement C is not true.