Nitrogen Cycle WB Quiz
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- Question 1 of 10
1. Question
What percent of the Earth is made up of Nitrogen?
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2. Question
What is the difference between nitrifying bacteria and denitrifying bacteria?
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3. Question
Match the description with its correct part of the nitrogen cycle.
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- Specialized bacteria convert ammonia into nitrite (NO2) and then other bacteria convert the nitrite into nitrates (NO3).
- Lightning and bacteria convert atmospheric nitrogen into nitrogen living things can use.
- The nitrogen-rich feces and dead remains of organisms is taken in by bacteria and turned into ammonium.
- Denitrifying bacteria convert nitrates (NO3) back into atmospheric nitrogen again.
- Nitrification
- Nitrogen fixation
- Ammonification
- Denitrification
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4. Question
Why do plants grow better with water from lightning storms than they do with water from sprinklers?
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5. Question
Select ALL of the following that convert nitrogen gas into nitrates that can be absorbed by plants through their roots. (2 choices)
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6. Question
What is the process called when decomposers convert nitrogen released from organisms into ammonium?
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7. Question
What do nitrogen-fixing bacteria do?
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8. Question
What must happen in order for nitrogen gas to be used by plants and other living organisms?
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9. Question
Why can’t plants use nitrogen gas to make organic compounds for themselves and other organisms?
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10. Question
Select ALL of the following that nitrogen is found in. (4 choices)
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