What is the largest reservoir for nitrogen?
Biogeochemical Cycles

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•
Science, Biology
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The atmosphere.
2.
FLASHCARD QUESTION
Front
Which process is responsible for the release of oxygen into the atmosphere?
Back
Photosynthesis.
3.
FLASHCARD QUESTION
Front
What is the primary role of bacteria in the nitrogen cycle?
Back
Convert nitrogen gas into ammonia.
4.
FLASHCARD QUESTION
Front
The carbon in coal, oil, and natural gas came from?
Back
The remains of dead organisms.
5.
FLASHCARD QUESTION
Front
According to the diagram, geologic activity, such as volcanoes, does what to CO2 levels?
Back
Increases the levels of CO2 in the atmosphere.
6.
FLASHCARD QUESTION
Front
What is a biogeochemical cycle?
Back
A natural process that recycles nutrients in various chemical forms from the environment to organisms and back to the environment.
7.
FLASHCARD QUESTION
Front
What is nitrogen fixation?
Back
The process of converting nitrogen gas from the atmosphere into ammonia or related compounds in soil.
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