Which definition best describes global warming? a. a long-term change in the earth's climate b. a long-term increase in the earth's average temperature c. a long-term change in the climate of a region or a city d. solar heat that is radiated out into space

B) A long-term increase in the Earth's average temperature

Global warming is a slow but gradual increase of Earth's temperature caused by an increase in carbon dioxide and other factors.

the answer to this predicament is false, by friend, i had this on a quiz, and i got it wrong, so i learned it, cos i was gonna have it on a test, and i got it right

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