Which of the following is a greenhouse gas?

Greenhouse gases trap heat within the Earth's atmosphere, contributing to global warming. Principal greenhouse gases include Carbon dioxide (${\text{CO}}_2$), Methane (${\text{CH}}_4$), Nitrous oxide (${\text{N}}_2\text{O}$), and water vapor. Diatomic gases like Nitrogen (${\text{N}}_2$) and Oxygen (${\text{O}}_2$), along with noble gases like Argon ($\text{Ar}$), do not absorb infrared radiation significantly.