Question

By far the largest sink for carbon monoxide is:

• A. its reaction with $OH$
• B. its reach with $C{O}_2$
• C. its reaction with water
• D. its reaction with aldehydes

Answer 1

Answer: (A)

its reaction with $OH$

Carbon monoxide (CO) is only a very weak direct greenhouse gas, but has important indirect effects on global warming. By far the largest sink for carbon monoxide is its reaction with OH in the atmosphere. However, a small but significant amount is also lost from the atmosphere through deposition on the ground.