Choose A, B, C, or D that best completes eac...

Câu hỏi: Choose A, B, C, or D that best completes each sentence. Methane is a far more active _______ than carbon dioxide, but also one which is much less abundant in the atmosphere.

Agreenhouse gas

Bgreenhouse effect

Cclimate change

Demission

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Kiểm Tra - Unit 6 !!