What is a greenhouse gas?(1 point)%0D%0AResponses%0D%0A%0D%0Aany gas in the troposphere that absorbs and re-emits infrared radiation%0D%0Aany gas in the troposphere that absorbs and re-emits infrared radiation%0D%0A%0D%0Aany gas in Earth's atmosphere%0D%0Aany gas in Earth's atmosphere%0D%0A%0D%0Aa gas that forms a physical barrier to block escaping heat%0D%0Aa gas that forms a physical barrier to block escaping heat%0D%0A%0D%0Aa gas at higher temperature than the surrounding atmosphere
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A greenhouse gas is any gas in the troposphere that absorbs and re-emits infrared radiation.
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