The Montreal Protocol 1987 refers to

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Q: (SSC/0)
The Montreal Protocol 1987 refers to

question_subject: 

Geography

question_exam: 

SSC

stats: 

0,11,5,3,0,2,11

keywords: 

{'montreal protocol': [2, 0, 0, 1], 'cfcs': [1, 0, 0, 2], 'ozone layer': [6, 0, 0, 6], 'nuclear free zone': [1, 0, 0, 0], 'antarctica': [0, 1, 0, 0], 'accord': [1, 0, 0, 0], 'signing': [1, 0, 1, 2], 'planet': [4, 0, 1, 1], 'peaceful uses': [1, 0, 0, 0], 'atmoic energy': [1, 0, 0, 0]}

The Montreal Protocol, which was established in 1987, is an international agreement aimed at protecting the ozone layer. The correct answer is option 4, "saving the ozone layer from destruction by reducing the use of CFCS (chlorofluorocarbons)." CFCS are harmful chemicals that were commonly used in various industrial and consumer products, such as aerosol sprays and refrigerants. These chemicals were found to contribute to the depletion of the ozone layer, which serves as a shield against harmful ultraviolet radiation from the sun. The Montreal Protocol set out to phase out the production and use of CFCS to prevent further damage to the ozone layer. It has been successful in reducing the production and consumption of ozone-depleting substances and has contributed to the recovery of the ozone layer.