Question

II. Which of the following can lead a global warming? Circle them.
Burning of fuels
Cutting down of trees
Refrigerator
Air conditioner
Volcano
A herd of cattle in a farm
Thick growth of plants
Clouds
Books on a table
III. Choose the correct answer:-
1. The increase in the number of factories and vehicles has resulted in the
increase of
(a) Oxygen
(b) Methane
(c) Carbon dioxide
(d) Water Vapour
2. The earth's atmosphere is a blanket of
(a) Wool
(b) Gases
(c) Water Vapour (d) Dust particles
3. Which of the following is not a greenhouse gas?
(a) Carbon dioxide
(b) Oxygen
(c) Methane
(d) CFC​

Answer 1

Answer:

burning of fuel

air conditioner

1. (c)

2.(b)

3.(b)