Biology, Science, Chemistry, Social Studies

9th -

12thgrade

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Biogeochemical Cycles 2

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17 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Which is the most abundant gas in the atmosphere?

    hydrogen

    oxygen

    helium

    nitrogen

  • 2. Multiple Choice
    30 seconds
    1 pt
    Image

    Which process removes carbon dioxide from the atmosphere?

    combustion

    cellular respiration

    photosynthesis

    decomposition

  • 3. Multiple Choice
    30 seconds
    1 pt
    Where is carbon stored in the environment?
    Fossil fuels
    Wood of trees
    Calcium carbonate (shells and bones)
    All of the above
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