• 2021-04-14
    It is pretty well understood _______ controls the flow of carbon dioxide in and out of the atmosphere today.
  • what

    内容

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      Carbon dioxide, which makes a ____________ between us and the sun, prevent heat from getting out of the the atmosphere easily, so the earth is becoming warmer.‌ A: difference B: comparison C: connection D: barrier

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      Among the gases in the atmosphere, only the concentration of carbon dioxide may result in preventing heat around the Earth from escaping.

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      carbon dioxide

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      The concentration of carbon dioxide is caused by_______. A: the heat accumulated in the atmosphere B: the burning of coal C: the wide use of renewable energy D: the destruction of the tropical rain forest

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      中国大学MOOC: The production of commercial concrete materials releases tons of the greenhouse gas carbon dioxide (CO2) into the atmosphere each day, contributing to the calamity of climate change.