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The best definition of global warming is long-term increase in the Earth's average temperature.
What is Global warming?
This term connote a kind of long-term heating of Earth's climate system. It was said to have began from the pre-industrial period that is between 1850 and 1900.
This is said to occur as a result of human activities, primarily fossil fuel burning, that tends to bring up the heat-trapping greenhouse gas levels in Earth's atmosphere up.
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The sentence that best describes global warming is a long-term increase in the Earth's average temperature.
What is Global warming?
Global warming serves as long-term heating of Earth's climate system, this started around the pre-industrial period and it is as results of human activities.
These human activities are;
- primarily fuel burning.
- destruction of forest trees.
Therefore, option B is correct.
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