Question

5. (a) What is air? Write the names of various constituents of air.
(b) what is air-pollution? What are the main sources of air-pollution?

Answer 1

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thє cσmpσѕítíσn σf αír cσnѕíѕtѕ σf thrєє kєч cσmpσnєntѕ σf αír, nαmєlч nítrσgєn (78%), σхчgєn (21%), αrgσn (1%), cαrвσn-dí-σхídє (0.03%) αnd wαtєr vαpσr. αír αlѕσ hαѕ ѕσmє σthєr gαѕєѕ вut thєч αrє ín vєrч mínutє pєrcєntαgє.

thє gαѕєσuѕ crítєríα αír pσllutαntѕ σf prímαrч cσncєrn ín urвαn ѕєttíngѕ íncludє ѕulfur díσхídє, nítrσgєn díσхídє, αnd cαrвσn mσnσхídє; thєѕє αrє єmíttєd dírєctlч íntσ thє αír frσm fσѕѕíl fuєlѕ ѕuch αѕ fuєl σíl, gαѕσlínє, αnd nαturαl gαѕ thαt αrє вurnєd ín pσwєr plαntѕ, αutσmσвílєѕ, αnd σthєr cσmвuѕtíσn ѕσurcєѕ.

Answer 2

Answer:

a) Name the major constituents of air.

...

Name of Constituents % Composition

Nitrogen gas 78.1%

Oxygen gas 20.9%

Carbon dioxide gas 0.03%

Argon 0.9%

b)There are four main types of air pollution sources: mobile sources – such as cars, buses, planes, trucks, and trains. stationary sources – such as power plants, oil refineries, industrial facilities, and factories. area sources – such as agricultural areas, cities, and wood burning fireplaces

Explanation:

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