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प्रश्न
The chemicals leading to the formation of ozone holes.
उत्तर
Chloroflurocarbons/CFCs
APPEARS IN
संबंधित प्रश्न
What are the causes of depletion of ozone layer? Which diseases are likely to be caused if the ozone layer will become thinner?
Which pollutant released into the air during refrigeration and airconditioning is the greatest contributor to the depletion of ozone layer?
(a) BHC
(b) DDT
(c) CFC
(d) UNEP
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.
What would be the effects on widening of ozone hole?
Name the following pollutants:
Any two chemicals leading to the formation of ozone holes.
Give balanced equations for formation of ozone molecules from oxygen molecules. What type of reaction takes place, during the formation.
Long answer type question
Montreal protocol is an essential step. Why is it so?
Which spectrum of the light harmful to organism: ____________.
State the essential function performed by ozone at the higher levels of the atmosphere.
Why was there a sharp in the amount of ozone in the atmosphere in 1980's.
