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प्रश्न
Write the full form of CFCs.
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उत्तर
CFCs: Chlorofluorocarbons
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संबंधित प्रश्न
Name the group of chemical compounds which damages the ozone layer.
Which of the following harmful radiation is absorbed by the ozone layer of the stratosphere?
Match the items in column I with the closely related ones in column II.
| Column I | Column II | ||
| (i) | Chlorofluorocarbons (CFCs) | (a) | Global warming |
| (ii) | Fly ash | (b) | Biodegradable |
| (iii) | Cow dung | (c) | Nuclear radiation pollutant |
| (iv) | CO2 and methane | (d) | Acid rain |
| (v) | Sulphur dioxide | (e) | Industrial waste |
| (vi) | Iodine-131 | (f) | Ozone depletion |
The following picture depicts a certain phenomenon
- Name the phenomenon and explain it.
- Enlist the sources that are responsible for the above mentioned phenomenon.
- List out the effects of the above phenomenon on humans.
How is ozone formed in the upper atmosphere? State its importance. What is responsible for its depletion? Write one harmful effect of ozone depletion.
Fill in the Blanks:
______ is manmade compounds that have been widely used as refrigerants and in spray propellants and foam blowing.
State the role of chlorofluorocarbons in ozone destruction or depletion [no equations required].
Give reason for the following:
Destruction of ozone layer is harmful for both humans and plants.
Long answer type question
Montreal protocol is an essential step. Why is it so?
Why was there a sharp in the amount of ozone in the atmosphere in 1980’s.
