A. CO2
B. H2
C. SO3
D. N2
Related Mcqs:
- The progressive warming up of the earth’s surface is mainly due to the___________________?
A. Automobile exhaust
B. Blanketing effect of CO2 in the atmosphere
C. De-forestation
D. Thickening of ozone layer - A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of _____________ high above earth’s atmosphere, which absorbs it?
A. Hydrogen
B. Carbon dioxide
C. Ozone
D. None of these - The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the_________________?
A. Ionosphere
B. Troposphere
C. Stratosphere
D. None of these - A ‘body’ which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the________________?
A. Global warming
B. Green house
C. Atmospheric effect
D. Ionosphere - The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the ________________?
A. Catalytic conversion
B. Green house effect
C. Global warming
D. Both B. and C. - Green house effect is accentuated by________________?
A. Deforestation
B. Rapid industrialisation
C. Increased transportation activity
D. All A., B. and C. - The earth’s atmosphere is an envelope of gases present upto a height of about ______________ kms?
A. 10
B. 200
C. 1000
D. 2000 - Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the_______________?
A. Forestation
B. Rain
C. Green house effect
D. Vegetation - Global warming may result in __________________?
A. Flood
B. Cyclone
C. Decrease in food productivity
D. All A., B. and C. - Which of the following is a green house gas other than CO2 ?
A. Methane
B. Nitrous oxide
C. Chlorofluoro carbons (CFC)
D. All A., B. and C.
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