Related Questions

which one among the following is responsible for formation of 'Ozone Holes' in the stratosphere?
A Chloro Fluoro Carbons
B Benzopyrene
C Hydrocarbons
D UV radiation
which one among the following is responsible for formation of 'Ozone Holes 'in the stratosphere?
A Chloro Fluoro Carbons
B Bnropyrene
C Hydrocarbons
D UV radiation
The presence of ozone in the stratosphere is responsible for
A Increasing the average global temperature in recent years
B Higher rate of photosynthesis
C Checking the penetration of ultraviolet rays to the earth
D Supplying oxygen for people travelling in jets
Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere?
A Ammonia
B Carbon dioxide
C Sulphur dioxide
D Fluorine
Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate?
A CO
B SO2
C NOx
D CFC (chloro fluoro carbons)
Which of the following statements about Stratosphere is incorrect?
A It is the region in the atmosphere above tropopause
B It contains ozone layer which prevents ultraviolet radiations of sun from reaching to the earth
C It is not free from the violent weather changes occurring on the earth
D It provides ideal flying conditions
The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is
A helium
B ozone
C oxygen
D methane
The plane of contact of the troposphere and stratosphere is known as ________
A Mesosphere
B Ionosphere
C Stratopause
D Tropopause
Ozone depletion in the stratosphere is mainly caused by
A SO2
B NO2
C NO
D Chlorofluorocarbons
The average thickness of ozone layer in stratosphere is about __________ dobson unit (DU).
A 20
B 230
C 750
D 1500

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