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2 votes
The greatest planetary pool of nitrogen is ________.

a. the atmosphere
b. the hydrosphere
c. the lithosphere
d. the biosphere in fossil fuel deposits

User Kei
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2 Answers

5 votes

Answer: a. the atmosphere

Step-by-step explanation:

User Mayeru
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6 votes
i think it’s a. the lithosphere
User Xonatron
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