Question

1. Put for true, and X for false.
a. All gases in the air are harmful.
b.
We can see dust particles in the air.
c. Smoke and harmful gases are given out by cars and factories
d. Germs are harmful to us.
e. Air with lots of dust, smoke or harmful gases is bad for our
health

f.
More water vapour gets into air in summer than in winter.
g. Dirty air can make us ill.​

Answer 1

Answer:

a)X

b)true

c)true

d)true ,but there are some microorganisms which are good for our health like germs of curd

e)true

f)true

g)true

Explanation:

hope it helps u ,plz mark bainliest

Answer 2

Answer:

1. a. X

b.True

c.True

d. True but all the micro organisms are not harmful like the germs of curd

e. True

f. True