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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
How does ozone affect any ecosystem?
What step has been taken by UNEP in 1987 to prevent too much damage to the ozone layer?
The excessive exposure of humans to ultraviolet rays results in:
- damage to immune system
- damage to lungs
- skin cancer
- peptic ulcers
The chemicals leading to the formation of ozone holes.
Give reason for the following:
The formation of ozone involves a chemical reaction called photolysis.
Name or state the following:
An atmospheric pollutant responsible for both global warming and ozone depletion.
The substance which is chiefly responsible for the depletion of ozone layer is ______.
Gas A, found in the upper layers of the atmosphere, is a deadly poison but is essential for all living beings. The amount of this gas started declining sharply in the 1980s.
- Identify Gas A. How is it formed at higher levels of the atmosphere?
- Why is it essential for all living beings? State the cause for the depletion of this gas.
Why was there a sharp in the amount of ozone in the atmosphere in 1980’s.
World Ozone day is celebrated on ______.
