Question

Explain difference between pure air and polluted air

Answer 1

Pure Air:

Pure air contains around 78% nitrogen, 21% oxygen, and 0.03% carbon dioxide also small amounts of argon, methane, ozone, and water vapours.

Polluted air:

Polluted air includes gases like sulfur dioxide, nitrogen dioxide, carbon dioxide, etc. and other particulate matter.Smog is not present.Smog can be present.Not harmful for human beingsHarmful for human beings as cause diseases like asthma

Answer 2

PURE AIR

1. Homogenous

2. Doesnot contain harmful particles.

3. Absence of poisonous gases.

4. Doesnot cause acid rain.

POLLUTED AIR

1. Heterogenous

2. Contains harmful particles like smoke from factories,vehicles

3. Contains poisonousgases such as sulphurois gases.

4. Causes acid rain when it mixes with rain water

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