Question

What is a greenhouse gas?(1 point)
Responses

a gas at higher temperature than the surrounding atmosphere
a gas at higher temperature than the surrounding atmosphere

a gas that forms a physical barrier to block escaping heat
a gas that forms a physical barrier to block escaping heat

any gas in the troposphere that absorbs and re-emits infrared radiation
any gas in the troposphere that absorbs and re-emits infrared radiation

any gas in Earth's atmosphere

Answer 1

that traps heat and contributes to the greenhouse effect

Answer 2

that is not up there

Answer 3

My apologies for the oversight. The correct definition is: a gas in the Earth's atmosphere, such as carbon dioxide or methane, that traps heat and contributes to the greenhouse effect.