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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
You have been selected to talk on 'ozone layer and its protection" in the school assembly on 'Environment Day.'
(a) Why should ozone layer be protected to save the environment?
(b) List any two ways that you would stress in your talk to bring in awareness amongst your fellow friends that would also help in protection of ozone layer as well as the environment.
What step has been taken by UNEP in 1987 to prevent too much damage to the ozone layer?
Give scientific reasons:
Ozone present in the stratosphere is called as “good ozone”.
Why is ozone layer called ozone umbrella/shield?
Describe the methods of saving the ozone layer.
Number of Oxygen atom in Ozone.
The chemicals leading to the formation of ozone holes.
Select the correct answer from the following statement:
The gas which in presence of U.V. light gives two atoms of the same gas.
Give reason for the following:
Destruction of ozone layer is harmful for both humans and plants.
In 1987, the United Nations Environment Programme (UNEP) forged an agreement to freeze the production of a certain chemical to the year 1986 level. Name the chemical and the manufacturing companies m which this chemical was being mostly used.
In what way this chemical damage -
- the upper layers of the atmosphere and ultimately
- the organisms on the earth.
