If there was no CO2 in the atmosphere, the earth's temperature would be:
same as present
less than the present
dependent on O2 content of air
higher than the present
A
higher than the present
B
same as present
C
dependent on O2 content of air
D
less than the present
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Solution
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Carbon dioxide gas has the property of trapping infra red radiations from the sun so it raises the global temperature by being heat trapper. In its absence the temperature of the earth will be less than the present temperature.
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