greenhouse gas
Pronunciation
Noun
B1 Intermediate
Quick answer
A gas, such as carbon dioxide or methane, that traps heat in the earth's atmosphere and contributes to global warming.
Test yourself
Which word fits the gap? "Carbon dioxide is the _____ most commonly linked to climate change."
Answer: greenhouse gas
In your own words, what does "greenhouse gas" mean?
A gas, such as carbon dioxide or methane, that traps heat in the earth's atmosphere and contributes to global warming.
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