Multiple choice

The 1987 Montreal Protocol was signed for which of the following reasons?

  1. To phase out the use of CFCs, found to be causing depletion of the ozone layer

  2. To stop the global trade in products made from endangered tigers

  3. To ban nuclear testing in tropical oceans

  4. To begin conversion from fossil fuel use to more renewable energy sources to reduce the anthropogenic greenhouse effect
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A Correct answer
Explanation

The 1987 Montreal Protocol was signed to phase out the use of CFC's, found to be causing depletion of the ozone layer. The Montreal Protocol on Substances that Deplete the Ozone Layer is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances believed to be responsible for ozone depletion. 

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