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  1. The 1987 Montreal Protocol was signed for which of the following reasons ?
    1. To phase out the use of CFC's, found to be causing depletion of the ozone layer
    2. To ban nuclear testing in tropical oceans
    3. To begin converting from fossil fuel use to more renewable energy sources to reduce the anthropogenic greenhouse effect
    4. To stop the global trade in products made from endangered tigers
Correct Option: A

NA


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