Houseflies and mosquitoes have become resistant to the

The pesticide used in the foundations of buildings for preventing termite attack is:

The below chart shows the sources of water pollution. Read the chart carefully and identify $A, B, C$ and $D$.

Assertion : Organochlorine pesticides are organic compounds that have been chlorinated.
Reason : Fenitrothion is one of the organochlorine pesticides.

Carbon monoxide $(CO)$ is a pollutant because...

Choose the correct option for catalytic converters.