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Which of the following conference obtain...

Which of the following conference obtained commitments from different countries for reducing overall green house gas emission at a level 5% below 1990 level by 2008-2012 ?

A

Kyoto protocol, 1997

B

Earth summit, Rio-de-Janeiro, 1992

C

Montreal protocol , 1987

D

Helsinki Declaration, 1989

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The correct Answer is:
A
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