Question

fall final exam: mc
which of the following is not considered to be a greenhouse gas?
○ n₂o
○ h₂o
○ o₂
○ ch₄

Explanation:

Greenhouse gases trap heat in the atmosphere. $\ce{N2O}$ (nitrous oxide), $\ce{H2O}$ (water vapor), and $\ce{CH4}$ (methane) are greenhouse gases. $\ce{O2}$ (oxygen) is not a greenhouse gas as it does not absorb infrared radiation to trap heat.

Answer:

O₂ (the option with label "O₂")