Greenhouse gas definition is any of various gaseous compounds (such as carbon dioxide or methane) that absorb infrared radiation, trap heat in the atmosphere, and contribute to the greenhouse effect How to use greenhouse gas in a sentenceWhat causes climate change?Greenhouse effect Noun phenomenon where gases allow sunlight to enter Earth's atmosphere but make it difficult for heat to escape greenhouse gas Noun gas in the atmosphere, such as carbon dioxide, methane, water vapor, and ozone, that absorbs solar heat reflected by the surface of the Earth, warming the atmosphere solar energy
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