A) \[CO\]
B) \[C{{O}_{2}}\]
C) \[N{{H}_{3}}\]
D) \[P{{O}_{4}}\]
Correct Answer: B
Solution :
The carbon dioxide (\[C{{O}_{2}}\]) gas is added to the atmosphere mainly by burning fossil fuel such as coal, oil etc., and also by volcanic activity. Not only \[C{{O}_{2}}\] but also the CFCs and to some extent methane and oxides of nitrogen increase the temperature of the earth surface. Thus, they are described as green-house gases.
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