Explain the causes of global warming. why is it a warning to mankind?
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global warming is nothing but heating up our atmos phere by the green house gases like co2. andit is increasing about 5 k yearly
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the causes of global warming are excessive burning of fuels by mankind.Smoke emitted by factories and automobiles is another reason for the global warming.It us a kind of warning to human biengs that they should control their activities or else it will lead to the destruction of the earth.
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