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The Montreal Protocol on Substances that Deplete the Ozone Layer aims to control the production and use of :
1. Dichloromethane
2. CFCs
3. HFCs
Select the correct answer using the codes given below.
- a)1 and 2 only
- b)2 only
- c)2 and 3 only
- d)1,2 and 3
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The Montreal Protocol on Substances that Deplete the Ozone Layer aims ...
Answer: b
Explanation: Montreal protocol aims to phase out several groups of halogenated hydrocarbons that have been shown to play a role in ozone depletion. All of these ozone depleting substances contain either chlorine or bromine (substances containing only fluorine do not harm the ozone layer). These include CFCs and HCFCs. HFCs replaced CFCs and HCFCs. HFCs pose no harm to the ozone layer because, unlike CFCs and HCFCs, they do not contain chlorine. The Montreal Protocol therefore does not address HFCs. But HFCs cause global warming. Dichloromethane is a new entry among gases that depletes ozone layer, but at present it has not been included under Montreal Protocol.
Most Upvoted Answer
The Montreal Protocol on Substances that Deplete the Ozone Layer aims ...
Montreal Protocol on Substances that Deplete the Ozone Layer
The Montreal Protocol is an international treaty designed to protect the ozone layer by phasing out the production and consumption of ozone-depleting substances. The protocol has been hailed as one of the most successful environmental agreements in history.
Controlled Substances
- CFCs (Chlorofluorocarbons): CFCs are synthetic compounds that were commonly used in refrigerants, aerosol propellants, solvents, and foam-blowing agents. They are known to deplete the ozone layer and contribute to global warming.
- HFCs (Hydrofluorocarbons): HFCs are a group of chemicals used as replacements for CFCs. While they do not deplete the ozone layer, they are potent greenhouse gases that contribute to climate change.
Therefore, the Montreal Protocol aims to control the production and use of CFCs and HFCs to mitigate their harmful effects on the ozone layer and climate. Dichloromethane is not specifically targeted by the Montreal Protocol for ozone depletion, so the correct answer is Option B: 2 only.
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The Montreal Protocol on Substances that Deplete the Ozone Layer aims to control the production and use of :1. Dichloromethane2. CFCs3. HFCsSelect the correct answer using the codes given below.a)1 and 2 onlyb)2 onlyc)2 and 3 onlyd)1,2 and 3Correct answer is option 'B'. Can you explain this answer?
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The Montreal Protocol on Substances that Deplete the Ozone Layer aims to control the production and use of :1. Dichloromethane2. CFCs3. HFCsSelect the correct answer using the codes given below.a)1 and 2 onlyb)2 onlyc)2 and 3 onlyd)1,2 and 3Correct answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about The Montreal Protocol on Substances that Deplete the Ozone Layer aims to control the production and use of :1. Dichloromethane2. CFCs3. HFCsSelect the correct answer using the codes given below.a)1 and 2 onlyb)2 onlyc)2 and 3 onlyd)1,2 and 3Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The Montreal Protocol on Substances that Deplete the Ozone Layer aims to control the production and use of :1. Dichloromethane2. CFCs3. HFCsSelect the correct answer using the codes given below.a)1 and 2 onlyb)2 onlyc)2 and 3 onlyd)1,2 and 3Correct answer is option 'B'. Can you explain this answer?.
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