Question

Answer the following questions:
[20]
1. How does carbon dioxide help to keep the earth warm?
2. Why do aeroplanes and jets fly in the stratosphere?
3. Why is the upper part of the Thermosphere known as the lonosphere?
4. Why is chlorofluorocarbon called a greenhouse gas?
5. How can the ultraviolet rays be harmful?
6. State any two reasons for global warming.
7. Why is an isotherm used in a weather map?
8. Why is the atmospheric pressure low at high temperatures?
9. What is atmospheric pressure?
10. Why do we place a wind vane away from buildings and trees?​

Answer 1

Answer:

exam he appko copy Karne ke liea puuch rahe ho kya

1. co2 produces heat

2 because air is denser

3 sry

4cfcl is harm fun gas

5it burns skin

6 it is sure to garbage and less presence of oxygen

7 sry

8 because of the presence of oxygen

9preasure exerted by atmosphere

10 because it has large force which destroys buildings

Answer 2

Mark me as brainlist