Question

________ is the most powerful greenhouse gas.

Methane
Oxygen
Nitrogen​

Answer 1

Answer:

Methane...

___________

Atmospheric methane is the methane present in Earth's atmosphere. Atmospheric methane concentrations are of interest because it is one of the most potent greenhouse gases in Earth's atmosphere. Atmospheric methane is rising. The 20-year global warming potential of methane is 84.

Answer 2

Answer:

$methane$

Methane is the most powerful greenhouse gas.