27. Why is Ozone layer getting depleted at higher levels of the atmosphere? Write Govt. action to
Ozone layer depletion.
Answers
Explanation:
Chlorofluorocarbons
Chlorofluorocarbons (CFCs) and other halogenated ozone depleting substances (ODS) are mainly responsible for man-made chemical ozone depletion. The total amount of effective halogens (chlorine and bromine) in the stratosphere can be calculated and are known as the equivalent effective stratospheric chlorine (EESC).
Answer:
why is ozone layer getting depleted at the higher level of the atmosphere ? ... High in the atmosphere they are broken down by sunlight, releasing chlorine and fluorine. They react with ozone and break it down into oxygen faster than it can be reformed from oxygen into ozone. This depletes the ozone in the atmosphere.The Montreal Protocol on Substances that Deplete the Ozone Layer is the 1987 UN-sponsored global agreement focused on protecting the ozone layer in the Earth's atmosphere. Under this treaty, countries agreed to replace the ozone depleting chlorofluorocarbons (CFCs), used as refrigerants, with HFCs.
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