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प्रश्न
How depletion of the ozone layer affect living organisms?
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उत्तर
- The thinning of the ozone layer results in an increase in the levels of UV radiation reaching the earth’s surface. In humans, increased UV radiation causes ageing of the skin, damage/injuries to skin cells and skin cancers including melanoma.
- It also causes cataracts and even permanent damage to the cornea, weakening of immune system. UV radiation also causes mutations in living organisms.
- DNA and proteins of living cells absorb the UV rays, and high energy of UV radiation breaks the chemical bonds of these molecules, thus affecting normal metabolism.
- UV radiation inhibits photosynthesis in most phytoplanktons as it penetrates through the ocean water. This affects the entire food chain in the aquatic ecosystem.
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संबंधित प्रश्न
What is the function of ozone in the upper atmosphere?
Which radiations are absorbed by ozone layer?
Why is ozone layer called ozone umbrella/shield?
Explain ozone layer, its depletion and effects of ozone depletion.
Is ozone depletion related to global warming?
How is the ‘ozone oxygen cycle’ maintained in the stratosphere and state what disturbs the balance, resulting in ozone depletion or destruction, Give balanced equation for the same.
Enumerate methods of protecting the ozone layer and preventing its depletion.
Name or state the following:
The atom which reacts with oxygen to form ozone.
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.
In 1987, an agreement was formulated by the United Nations Environment Programme (UNEP) to freeze the production of “X” to prevent the depletion of “Y”. “X” and “Y” respectively referred to here are ______.
