GLOBAL WARMING

I want to have some GLOBAL WARMING informations.

Please type in ENGLISH, thank you.

2 個解答

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  • 1 十年前
    最愛解答

    To understand global warming , you have to know what greenhouse effect is.

    some gases in the earth's atmosphere can trap heat from the sun and keep the earth warm . this is called greenhouse effect .

    carbon dioxide is a kind of greenhouse gas . due to increasing human activities , more fossil fuels are burnt and more carbon dioxide released to the atmosphere . therefore , more heat is trapped . the global temperatures increase and this is called global warming .

    資料來源: understanding integrated science 1B
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