Question

a. what is air?
b . how does Air get polluted?
c what will happen if we breathe in polluted air? d.what should we do to keep air clean?
e. name the gas that all living things need to survive?
f. write two properties of air?
​

Answer 1

Answer:

air is A oxygen which is necessary for us.

Air get polluted by the factories bad air .

We should close the factories

Oxygen

Answer 2

Answer:

a. Air is a source which humans breathe in for living.

b. Air gets polluted by let out gases coming from factories

c.If we breathe polluted air we will get many respiratory problems

d.by reducing the use of factories.

e.Air is odour less,Air has no shape.