Science

7th

grade

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Nitrogen Cycle

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  • 1. Multiple Choice
    30 seconds
    1 pt

    What converts nitrogen gas into a usable form for plants and animals?

    bacteria

    rain

    fungi

    car exhaust

  • 2. Multiple Choice
    30 seconds
    1 pt

    The process in which nitrogen circulates and is recycled is called

    The nitrogen cycle

    The carbon cycle

    The water cycle

    The phosphorus cycle

  • 3. Multiple Choice
    45 seconds
    1 pt

    Organisms that need nitrogen to survive.

    only plants

    only animals

    only bacteria

    all living things

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