What is a greenhouse gas?(1 point)

Responses
only answers I GAVE should be offered.
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

1 answer

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