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प्रश्न
The harmful radiations absorbed by the ozone layer are ______.
विकल्प
X-rays
visible light
Ultraviolet (UV) rays
gamma rays
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उत्तर
The harmful radiations absorbed by the ozone layer are Ultraviolet (UV) rays.
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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.
The gas A is used by most of the animals to obtain energy from food by the process of respiration. When A is acted upon by radiation X, it gets converted into another gas B which is an allotrope of A but poisonous when inhaled. B forms a kind of layer C in the upper atmosphere which absorbs radiations X coming from a source Y and prevent them from reaching the earth. Some chemicals Z released from the various devices on the earth are destroying the layer C slowly. In fact, a hole has already been formed in layer C over the area D of the earth.
(a) What are gases (i) A, and (ii) B? Write their molecular formulae.
(b) Name the layer C.
(c) What are (i) X, (ii) Y, and (iii) Z?
(d) Name the area D.
(e) Name any two human ailments which may be caused by X.
Explain what is smog. Give its effects.
Explain ozone layer, its depletion and effects of ozone depletion.
State two effects of ozone depletion.
‘There is a hole in the ozone layer’. What do you understand by this?
Ozone is abundant in this layer. Ozone heats this layer as it absorbs from incoming ultraviolet radiation from the sun:
State how CFCs break ozone in the stratosphere.
Which of the following radiations is responsible for the conversion of atmospheric oxygen to ozone?
______ was signed in 1987 to control emission of ozone depleting substances.
