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astraxan [27]
4 years ago
4

Nitrogen is one of the important elements for life. Nitrogen is present in DNA and proteins. It’s also a component of in plants,

a pigment that’s critical for photosynthesis. Although nitrogen is present in the air, it can’t be consumed directly. It’s converted into usable form by .
Biology
1 answer:
morpeh [17]4 years ago
5 0

Answer:B

Explanation:

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