Science, Biology

7th -

9thgrade

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cycling of matter

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26 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Nitrogen fixation cannot occur through this method:

    lightning

    fertilizer

    nitrifying bacteria

    denitrifying bacteria

  • 2. Multiple Choice
    30 seconds
    1 pt

    The largest reservoir for phosphorous is the:

    atmosphere

    sedimentary rocks

    animals

    plants

  • 3. Multiple Choice
    30 seconds
    1 pt

    A dead tree decomposing would:

    add carbon to the atmosphere

    remove carbon from the atmosphere

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