Which of the following are considered atmospheric air pollutants?

Which of the following industries is the best source of increasing $CO$ levels in the atmosphere?

Which aerosols deplete ozone?

Consider the following reactions involving some atmospheric pollutants:
$NO + O_3 \rightarrow NO_2 + O_2$
$NO_2 \xrightarrow{h \nu} NO + O$
$O + O_2 \rightarrow O_3$
$4 NO_2 + O_2 + 2 H_2 O \longrightarrow 4 HNO_3$
$3 CH_4 + 2 O_3 \longrightarrow 3 H_2 C = O + 3 H_2 O$
Based on the above,the formation of formaldehyde from methane in the atmosphere will be controlled by:

Mention the harmful effect of ultra violet radiations.

How much carbon dioxide gas is removed from the atmosphere annually at the end of the process of photosynthesis?