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प्रश्न
Very short answer type question
Where was the ozone hole discovered?
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उत्तर
The ozone hole was discovered over the Antarctic region, wherein a depletion of the ozone layer has resulted in the formation of a large area of the thinned ozone layer, commonly called the ozone hole.
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संबंधित प्रश्न
Write the full name of CFC.
O2 is converted into O3 by the action of :
(a) infrared radiations
(b) ultraviolet radiations
(c) gamma radiations
(d) cosmic radiations
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.
Which class of carbon compounds is responsible for the depletion of ozone layer at the higher level of the atmosphere?
How is ozone formed in the upper atmosphere? State its importance. What is responsible for its depletion? Write one harmful effect of ozone depletion.
Discuss in detail the process of ozone depletion.
The problem caused due to ozone hole is ______.
Which of the following may be a conclusion of the excessive exposure of humans to sun’s ultraviolet rays?
- Peptic ulcers
- Eye disease like cataract
- Damage to lungs
- Skin cancer
A motor car, with its glass totally closed, is parked directly under the sun. The inside temperature of the car rises very high. Explain why?
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.
