Thermal power plants can lead to:

Which of the following components,when increased in concentration in the atmosphere,causes acid rain?

Chlorine gas reacts with the aromatic ring of lignin to form which of the following substances?

The primary pollutant that leads to photochemical smog is

Define environmental chemistry.

Biochemical Oxygen Demand,$(BOD)$ is a measure of organic material present in water. $BOD$ value less than $5 \ ppm$ indicates a water sample to be ..... .