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प्रश्न
‘There is a hole in the ozone layer’. What do you understand by this?
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उत्तर
The depletion of the ozone layer takes place due to two reactions between ozone and chlorofluorocarbons which are released from an aerosol spray can in air conditioners and refrigerators. The depletion is particularly marked over the Antarctic region. This has resulted in the formation of a large area of thinned ozone layer called the ozone hole.
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संबंधित प्रश्न
The prime source of chlorofluorocarbons is ______.
How is ozone formed in the higher level of atmosphere?
Which compounds are responsible for the depletion of ozone layer?
Match the items in column I with the closely related ones in column II.
| Column l | Column lI | ||
| (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 |
What is the difference between stratospheric and ground level ozone?
Give balanced equation for the following conversion [one or two steps].
A molecule of ozone to two molecules of oxygen gas.
Long answer type question
Montreal protocol is an essential step. Why is it so?
Which of the following may be a conclusion of the excessive exposure of humans to sun’s ultraviolet rays?
- Peptic ulcers
- Eye disease like cataract
- Damage to lungs
- Skin cancer
Depletion of ozone is mainly due to
State the essential function performed by ozone at the higher levels of the atmosphere.
