Question

how is atmosphere heated give some points for standard 7th

Answer 1

I think the atmosphere is heated by global warming, burning leaves, papers, wood etc and also by deforestation and over use of fossil fuels
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Answer 2

it is due to the trapping of green house gases which rises the earth's temp. n lead to global warming..these things are possible by deforestation,overuse of fossil fuels to generate electricity...and use of harmful substances like chloroflourocarbons....