Methane in the polluted air reacts with oxygen to form which of the following compounds?

On the surface of polar stratospheric clouds,hydrolysis of chlorine nitrate $(ClONO_2)$ gives $A$ and $B$,while its reaction with $HCl$ produces $B$ and $C$. $A, B$ and $C$ are,respectively:

Explain tropospheric pollution caused by oxides of nitrogen.

Which of the following diseases increases in prevalence due to the greenhouse effect?

Methemoglobinemia is due to

When a huge amount of sewage is dumped into a river,the $BOD$ will