Hii!
Global warming is the rise in temperature of the Earth or the globe , as the name suggests, due to emmision of greenhouse gases which in turn are released due to burning man f fossil fuels and other kind of fuels and also emmision of certain radiations due to human activities. This includes CFC emissions, corroding the ozone layer which then traps heat and the heat keep on revolving across Earth, setting the average temperatures to rise globally.
This triggers various environmental responses such as melting of glaciers, changes in proper arrival of diffrent seasons etc.,
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