Related Questions

There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth's surface in which human being along with other organisms live is called troposphere. The rate at which air temperature in the troposphere gradually decreases with height is about __________ °C/km.
A 0.05
B 1
C 6.5
D 15
Depletion of ozone layer in the outer atmosphere may cause
A Lung cancer
B Skin cancer
C Bronchitis
D Heart disorder
CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones.
A 102
B 105
C 109
D 1015
Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere?
A Ammonia
B Carbon dioxide
C Sulphur dioxide
D Fluorine
Ozone depletion in the stratosphere is mainly caused by
A SO2
B NO2
C NO
D Chlorofluorocarbons
Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere?
A Chlorofluorocarbons
B Nitrous oxide
C Sulphur dioxide
D Carbon dioxide
Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ?
A Nitrous oxide
B Carbon dioxide
C Chlorofluorocarbon
D Sulphur dioxide
Fill in the blanks : Despite the polar bear's tremendous weight and height, -----of running at tremendous speed.
A It is capable
B capable
C it is able
D ability
The plane of contact of the troposphere and stratosphere is known as ________
A Mesosphere
B Ionosphere
C Stratopause
D Tropopause
The average thickness of ozone layer in stratosphere is about __________ dobson unit (DU).
A 20
B 230
C 750
D 1500

Next steps