Question

B. Fill in the blanks.
1. The blanket of
around Earth is called _
2. The living things need
... gas to breathe.
3.
is the heaviest layer of the atmosphere.
4.
impurities can be removed by evaporation,
5. Chlorine gas is used to kill ....
... present in water,
T​

Answer 1

Answer:

1. atmosphere

2. oxygen

3. troposphere

Answer 2

Answer:

1- atmosphere

2- oxygen

3- troposphere

4-

5- germs