Write an essay on air pollution.

1.	Write an essay on air pollution.
Answer» Pollution of Air : 1. Air is a mixture of several gases. 2. The main gases are nitrogen (78.09%) for forming products such as fertilizers for plants and for making the air inert, oxygen (20.95%) for breathing and carbon dioxide (0.03%) for photosynthesis. 3. Some other gases like argon, neon, helium, krypton, hydrogen, zenon and methane are also present. 4. Air pollution is the contamination of the indoor or outdoor air by a range of gases. Air pollution can be categorized into primary and secondary pollutants. 5. A primary pollutant is an air pollutant emitted directly from a source. 6. A secondary pollutant is not directly emitted. 7. Primary pollutants are as follows: Oxides of Sulphur Oxides of Nitrogen Oxides of Carbon Particulate Matter Other primary pollutants 8. Secondary pollutants are as follows: Ground Level Ozone Smog

Answer»

Pollution of Air :

1. Air is a mixture of several gases.

2. The main gases are nitrogen (78.09%) for forming products such as fertilizers for plants and for making the air inert, oxygen (20.95%) for breathing and carbon dioxide (0.03%) for photosynthesis.

3. Some other gases like argon, neon, helium, krypton, hydrogen, zenon and methane are also present.

4. Air pollution is the contamination of the indoor or outdoor air by a range of gases. Air pollution can be categorized into primary and secondary pollutants.

5. A primary pollutant is an air pollutant emitted directly from a source.

6. A secondary pollutant is not directly emitted.

7. Primary pollutants are as follows:

Oxides of Sulphur
Oxides of Nitrogen
Oxides of Carbon
Particulate Matter
Other primary pollutants

8. Secondary pollutants are as follows:

Ground Level Ozone
Smog

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