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Sauron [17]
3 years ago
14

An

Biology
2 answers:
lorasvet [3.4K]3 years ago
7 0
Amplitude of wave is A
soldi70 [24.7K]3 years ago
3 0
The answer is A I believe
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Answer:Nitrogen in its gaseous form (N2) can’t be used by most living things. It has to be converted or ‘fixed’ to a more usable form through a process called fixation. There are three ways nitrogen can be fixed to be useful for living things:

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Through lightning: Lightning converts atmospheric nitrogen into ammonia and nitrate (NO3) that enter soil with rainfall.

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