Question

write the two main causes of the depletion of ozone layer​

Answer 1

Answer:

The main cause of ozone depletion and the ozone hole is

1-manufactured chemicals, especially manufactured halocarbon refrigerants, solvents, propellants, and foam- blowing agents (chlorofluorocarbons (CFCs), HCFCs, halons)

2- The main cause of ozone layer depletion is the build-up of chlorofluorocarbon(CFC's) in the atmosphere. When the CFC's reaches the upper atmosphere, high UV radiation reacts with these and releases chlorine atoms. These free chlorine atoms react with ozone thereby leading to the depletion of the ozone layer.

Explanation:

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Answer 2

The two main causes of the depletion of ozone layer are :-

1) Chlorofluorocarbons or CFCs are the main cause of ozone layer depletion. These are released by solvents, spray aerosols, refrigerators, air-conditioners, etc.

2)The molecules of chlorofluorocarbons in the stratosphere are broken down by the ultraviolet radiations and release chlorine atoms