Question

5.
Explain the differences between pure air and polluted air​

Answer 1

Explain the differences between pure air and polluted air. ... Pure air is free from germs and harmful gases. It contains 78% nitrogen, 21% oxygen and small amount of other gases and dust particles. Polluted air contains harmful gases and unwanted substances.

Answer 2

$\huge{\underline{\underline{\boxed{\mathscr{\red{Aɴsᴡᴇʀ\: ࿐}}}}}}$

${ \textsf{ \textbf{ \orange{ \underline{pure air }}}}}$

Pure air consists of a mixture of gases in proper proportion which is good for living beings. That is, by volume about 78% of nitrogen, about 21% of oxygen and in very small quantities of carbon dioxide, argon, methane, ozone and water vapour.

${ \textsf{ \textbf{ \orange{ \underline{polluted air}}}}}$

Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a major part of air pollution in cities. When ozone forms air pollution, it's also called smog. Some air pollutants are poisonous.