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Doctors Medicines MCQs Q&A

  1. Combat desertification
  2. Formulate sustainable developmental goals
  3. Protection of ozone layer
  4. Combat climate change
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1 Answers

Option 3 : Protection of ozone layer

The correct answer is option 3, i.e. The main objective of the Vienna Convention and the Montreal Protocol is Protection of the ozone layer

Vienna Convention:

  • Vienna convention was signed in the year 1985 after the role of Chlorofluorocarbons (CFCs) was confirmed in depletion of the Ozone layer.
  • The convention came into force in the year 1988.
  • It was like a framework to be adopted in order to protect the ozone layer (which did not contain binding measures).

Montreal Protocol:

  • The protocol was adopted in the year 1987.
  • This protocol proposed legally binding measures to phase out the Ozone Depleting Substances (ODSs). 
  • Montreal Protocol banned the chemicals falling under the following groups:
    • Chlorofluorocarbons (CFCs)
    • Halons
    • Carbon tetrachloride (CTC)
    • Hydrochlorofluorocarbons (HCFC)
    • Methyl chloroform
    • Methyl bromide
  • Since its adoption, it has been ratified by 197 countries and has been successfully phased out 95% of ODSs.
  • It is considered the most successful treaty to date in controlling human activities which harm the planet.
  • Since then Hydrofluorocarbons (HFCs) have been used as a substitute for CFCs.
  • But HFCs are greenhouse gases with Global Warming potential 1000 times of that of Carbon dioxide.
  • Therefore, Kigali Agreement, an amendment to the Montreal Protocol was signed in 2016 included the HFCs also.
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Related Questions

In the following question, the 1st and the last part of the sentence/ passage are numbered 1 and 6. The rest of the sentence/passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct. 1. The Goods and Services Tax (GST) is imposed on the supply of products and/or services within the country. P. This can be achieved by charging uniform tax rates and eliminating economic barriers. Q. The objective of GST is to drive India towards becoming an integrated economy. R. These include Service Tax, Purchase Tax, Central Excise Duty, Value Added Tax, Entry Tax, Luxury Tax, Local Body Taxes, etc. S. It subsumes multiple indirect taxes that are imposed by the State Governments or the Central Government 6. Thus, it will make the country a common national market?
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