Science

9th

grade

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3.4 Biogeochemical Cycles

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16 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    What cycle are fossil fuels part of ?

    carbon

    oxygen

    nitrogen

    phosphorus

  • 2. Multiple Choice
    30 seconds
    1 pt

    What is the role of bacteria in the nitrogen cycle?

    convert nitrogen

    produce sugars

    burn carbon dioxide

    decay organisms

  • 3. Multiple Choice
    30 seconds
    1 pt

    What process is part of the phosphorus cycle? Think EROSION

    transpiration

    nitrification

    combustion

    sedimentation

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