Maximum green house gas released by which country : -

Maximum green house gas released by which country : -
A India
B France
C U.S.A.
D Britain

Detailed Solution

Greenhouse gases such as $CO_2$, methane and nitrous oxide are released mainly by burning fossil fuels in industry, power plants and transport.
At the time of this paper, the U.S.A., being the most industrialised country with very high per capita energy use, released the largest amount of greenhouse gases in the world.
(In later years China's total emissions became the largest, though the U.S.A. still has much higher emissions per person.)
So, at the time of this question, the maximum greenhouse gas was released by the U.S.A.

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