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प्रश्न
Discuss in detail the process of ozone depletion.
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उत्तर
The upper part of stratosphere contains large amount of Ozone gas. The ozone gas blocks the harmful ultraviolet rays reaching earth. It has been proved that chlorofluorocarbons or CFC are released from the refrigeration system, air conditioning systems, spray cans etc. These CFC’s are light and are able to reach at height of stratosphere. Here they react with the ozone gas. In this process the chlorine gas is released which reacts with the ozone gas. It breaks apart the ozone molecules thus reducing them in the stratosphere. As a result, the ultraviolet radiation is able to reach the surface of earth. These rays can cause skin cancer, cataract and affect the immune system of the body.
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संबंधित प्रश्न
Ozone depletion is occurring widely in the stratosphere; it leads to an ozone hole caused mainly due to ______.
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.
Write the full name of CFC.
What are the causes of depletion of ozone layer? Which diseases are likely to be caused if the ozone layer will become thinner?
The depletion of ozone layer in the upper atmosphere is mainly due to the emission of :
(a) unburnt hydrocarbons
(b) chlorofluorocarbons
(c) greenhouse gases
(d) ultraviolet radiations
Depletion of ozone in the ozone layer is a cause for our worry. Why?
What is the difference between stratospheric and ground level ozone?
Ozone is abundant in this layer. Ozone heats this layer as it absorbs from incoming ultraviolet radiation from the sun:
Why is ozone layer getting depleted at the higher levels of the atmosphere? Mention one harmful effect caused by its depletion.
______ was signed in 1987 to control emission of ozone depleting substances.
