• 2021-04-14
    Rives _ used to be polluted by industrial chemical waste.

  • which

    内容

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      Many lakes and rivers have been___by industrial waste. A: polluted B: polluting C: pollute D: to pollute

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      5. Many lakes and rivers have been ________by industrial waste. A: smog B: pollution C: polluted D: smoging

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      What were the men doing according to the police A: They were treating industrial waste. B: They were tanking industrial waste. C: They were tanking chemicals. D: They were using a tank to mix chemicals.

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      The waste gas of cars has only badly polluted the air.

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      One of the research area in Green Chemistry is to use renewable feedstocks for chemical production. Which could be used as feedstocks for chemical production in the following resources? A: Kitchen garbage B: Waste cooking oil C: Agricultural wastes D: Microalgae