Question

Explain the difference between pure air and polluted air?3 points each...​

Answer 1

Explanation:

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:

1.Pure air is free from germs and harmful

2 It contains 78% nitrogen, 21% oxygen and small amount of other gases and dust particles.

3.It is good for health.

polluted air

1.Polluted air contains harmful gases and unwanted substances.

2. polluted air cause breathing problems.

4. it is bad for health.