Related Questions

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
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 chemical materials is responsible for the depletion of ozone layer in the atmosphere ?
A Nitrous oxide
B Carbon dioxide
C Chlorofluorocarbon
D Sulphur dioxide
Depletion of ozone layer in the outer atmosphere may cause
A Lung cancer
B Skin cancer
C Bronchitis
D Heart disorder
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)
The depletion of Ozone layer is mainly due to
A Volcanic eruptions
B Aviation fuels
C Radioactive rays
D Chlorofluorocarbons
Ozone depletion is caused by
A Carbon monoxides
B Carbon dioxide
C Chlorofluorocarbon
D Mercuric Oxide
The depletion in Ozone layer is caused by ________ .
A Nitrous oxide
B Carbon dioxide
C Chlorofluorocarbons
D Methane
Under the depletion allowance method in computing depreciation, the depletion charge is equal to either ______ whichever is smaller.
A Fixed percentage of gross income or the net taxable income
B Fixed percentage of gross income or 50% of the net taxable income
C 50% of the fixed percentage of gross income or 50% of the net taxable income
D 50% of the fixed percentage of gross income or the net taxable income

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