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What is behind the destruction of the ozone layer?

Answer 1

Chrolofluorocarbon (CFCs) is the main criminal.

Chlorofluorocarbons, or CFCs, better known by the brand name Freon, are thought to be the primary cause of the ozone layer's depletion, which is why the Montreal Protocol (1987) forbade their use.

When CFCs are decomposed by UV, they form chlorine radical(#Cl*#) and react with ozone(#O_3#).

#O_3 -> O_2 + O*# #O_3+ Cl* -> ClO* +O_2# (1) #ClO* + O* -> Cl* +O_2# (2)

(1) and (2) are chain reactions. Thus, a small amount of #Cl# radical may destroy much more #O_3# molecules. How awful!

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Answer 2

Ezekiel Allen

The destruction of the ozone layer is primarily caused by the release of chlorofluorocarbons (CFCs), halons, carbon tetrachloride, and methyl chloroform into the atmosphere. These chemicals contain chlorine and bromine atoms, which react with ozone molecules in the stratosphere, breaking them apart and depleting the ozone layer.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.