Which of the following causes the unnatural,or human-made,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

Chlorine (Cl) atoms can be released into the atmosphere from human-made compounds such as chlorofluorocarbons (CFCs). These chlorine atoms react with ozone (O₃) molecules, causing them to break apart into O₂ and O. This process depletes the ozone layer and is the main cause of ozone depletion. Option A describes a natural process that occurs in the atmosphere, while options B and C describe the formation and breakdown of ozone through natural processes. Option E describes a reaction that can occur, but it does not result in the destruction of ozone.

Which of the Following Causes the Unnatural,or Human-Made,destruction of Ozone