Question

What is global warming
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Answer 1

Global warming is the long-term heating of Earth's surface observed since the pre-industrial period due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth's atmosphere.

Answer 2

See below

Step-by-step explanation:

Global warming is the rise in

temperature of the atmosphere of the

earth. This results, among other things,

in the melting of polar glaciers, which

leads to a rise in the sea level, causing

floods in the coastal areas.