Question

What structural modification of oxygen is an air pollutant in the lower atmosphere but beneficial in the upper atmosphere?

Answer 1

Monoxide is the structural modification of oxygen that is considered to be an air pollutant in the lower rungs of the atmosphere.

However, it is very useful in the upper atmosphere due to its ability to form ozone.

This shows the unique feature of monoxide.

Answer 2

Answer: Ozone

Ozone is the structural modification of the oxygen that is known to be the air pollutant in the lower atmosphere but in the stratosphere, it is considered to be beneficial.

Ozone is considered an air pollutant in the troposphere because it is harmful to breathe and it is responsible for causing damage to the crops and is considered to be the main ingredients of the smog. While in the stratosphere it protects the life on the earth by blocking the incoming of the ultraviolet radiations from the sun.