Question

III. Mark the sentences True (T) or False (F).
1. The ozone layer in the upper atmosphere
absorbs infrared radiation coming from the sun.
2. Excessive use of chemical fertilizers reduces
soil fertility in the long run.
3. Hot air is heavier than cold air.
4. Sea breeze and land breeze occur in the coastal
areas.
5. Condensation of water vapour in the air leads
to the formation of ice.
6. Monsoon is a seasonal wind flowing in a fixed
direction in a particular season.
7. The substances that cause pollution are called
poisons.
8. Nitrogen comprises 21% of the earth's
atmosphere.​

Answer 1

Answer:

1. T

2.T

3.T

4.T

5.F

6.T

7.F

8.F

Answer 2

Hello!❤

1) True

2) True

3) False

4) True

5)False

6) True

7)True

8) False