It is estimated that out of the total global warming the relative contribution of $C O_{2}$ , $C H_{4}$ , CFCs and $N_{2}$ O are found respectively as

60%, 20%, 14% and 6%

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6%, 14%, 20% and 60%

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20%, 60%, 14% and 6%

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20%, 14%, 60% and 6%

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14%, 6%, 20% and 60%

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Solution

The correct option is C 60%, 20%, 14% and 6%
The various green house gases are carbon dioxide (warming effect 60 percent), methane (warming effect 20 percent), chlorofluorocarbons (warming effect 14 percent), and nitrous oxide (warming effect 6 percent). Other gases of minor significance are water vapours and ozone.

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Similar questions

{C O}_{2}, {C H}_{4}, {C F C}_{s}

N_{2} O

Column I (Greenhouse gases)	Column II (Relative contribution to global warming)
1. $C O_{2}$	A. 20%
2. $C H_{4}$	B. 60%
3. $N_{2} O$	C. 14%
4. $C F C s$	D. 6%

14 %

6 %

Marks	$0 - 10$	$10 - 20$	$20 - 40$	$40 - 50$	$50 - 60$	$60 - 70$	$70 - 90$	$90 - 100$
No. of students	$4$	$6$	$14$	$16$	$14$	$8$	$16$	$5$

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