Which of the following causes the naturally occurring destruction of ozone?
A) An O₂ molecule absorbs UV energy, which causes it to split into two O atoms.
B) A single O atom combines with an O₂ molecule to form O₃.
C) An O₃ molecule absorbs UV radiation and splits into O₂ + O.
D) A Cl atom reacts with an O₃ molecule, creating ClO and O₂.
E) A ClO molecule gives up its O to another single O from an O₃.

Question

Quizplus · Accepted Answer

When an O₃ molecule absorbs UV radiation, it splits into O₂ + O, which is a natural destruction of ozone. Choice A describes the formation of O atoms, which can then combine with O₂ to form O₃. Choice B describes the formation of ozone. Choice D and E describe the role of chlorine (Cl) in ozone depletion, which is not a naturally occurring process.

Which of the Following Causes the Naturally Occurring Destruction of Ozone