Question

explain the difference between pure air and polluted air​

Answer 1

Answer:

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

Answer:

Explanation:

Pure:-

1. Pure air contains around 78% nitrogen, 21% oxygen and 0.03% carbon dioxide.

Polluted:

1. Polluted air has no such definite composition of these gases.

Pure:

2. Other gases such as argon, methane, ozone, and water vapours are also present in small quantities.

polluted:

2. Polluted air has harmful gases like nitrogen dioxide, sulphur dioxide, carbon monoxide, particulate matter etc.

Pure:

3. It is fresh and healthy for lungs.

Polluted:

3. It can cause respiratory diseases.