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igomit [66]
3 years ago
12

Why is the nitrogen cycle considered a closed system?

Physics
2 answers:
Svetradugi [14.3K]3 years ago
8 0

B nitrogen stays in order so it can't change movement

White raven [17]3 years ago
5 0

Answer:

B

Explanation:

I did it and it is B

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2 years ago
An airplane is sitting on a runway waiting to take off. The airplane begins to move down the runway and it takes 10 s for the ai
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