Quiz – Nitrogen Cycle

Question 1 of 6

1. Question

Destroys soil bacteria

Converts atmospheric nitrogen into usable forms

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Removes nitrogen from all living things

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Turns nitrogen into oxygen

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Destroys soil bacteria

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Question 2 of 6

2. Question

Ocean waves alone

Bacteria and natural processes

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Only sunlight

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Only large animals

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Ocean waves alone

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Question 3 of 6

3. Question

Only rainfall

Plants, animals, and decomposers

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Only rocks

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Only the atmosphere

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Only rainfall

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Question 4 of 6

4. Question

Converts nitrogen into carbon

Returns nitrogen to the atmosphere, completing the cycle

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Locks nitrogen in the soil forever

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Creates new nitrogen from nothing

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Converts nitrogen into carbon

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Question 5 of 6

5. Question

Match each step with its action in the nitrogen cycle.

Sort elements

Makes atmospheric nitrogen usable
Plants absorb nitrogen compounds
Returns nitrogen to the soil
Sends nitrogen back to the air

Nitrogen fixation

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Uptake

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Decomposition

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Denitrification

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Question 6 of 6

6. Question

What process converts atmospheric nitrogen into forms living things can use?

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