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प्रश्न
State two effects of ozone depletion.
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उत्तर
Effects of ozone depletion:
- UV rays of the Sun reach Earth and cause sunburn, premature ageing of the skin and skin cancer.
- The UV radiation can also damage several parts of the eyes, including the lens, cornea, retina, and conjunctiva.
संबंधित प्रश्न
How does ozone affect any ecosystem?
Explain how, harmful ultraviolet radiations of sunlight are prevented from reaching the earth's surface.
How does ozone layer protect us from harmful effects in the environment?
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
How is ozone formed in the higher level of atmosphere?
Explain what is smog. Give its effects.
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.
Give reason for the following:
Destruction of ozone layer is harmful for both humans and plants.
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.
What is exactly measured in Dobson units or DU?
