Question

Which of the following is not an air pollutant
a)smoke
B)carbon dioxide
C)nitrogen gas
D)sulphur dioxide

Answer 1

Answer:

freind there is wrong in ur question.

in the above question all are air pollutants.

even carbon dioxide causes global warming

Answer 2

The correct answer is- C) nitrogen gas.

• Air pollutants are the substances that affect the quality of air and cause harm to the health of living organisms.
• Some of the air pollutants are- smoke, carbon dioxide, oxides of nitrogen and sulphur. These gases are responsible for the greenhouse effect and global warming.
• Nitrogen gas is not an air pollutant because it is present in abundant amounts in the atmosphere. It is a non-reactive gas and hence, does not affect the quality of air.
• The oxides of nitrogen are harmful and cause the greenhouse effect.