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Which of these compounds are not a source of nitrogen for plants? A. Ammonia B. Proteins C. Nitrates D. Nitrites
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1 vote
Which of these compounds are not a source of nitrogen for plants?

A. Ammonia
B. Proteins
C. Nitrates
D. Nitrites

User Mark Rowlands
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2 Answers

7 votes

Answer:

B. Proteins

Step-by-step explanation:

User Nick Hill
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4 votes

Answer: D

Step-by-step explanation:

User Darren Steinweg
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6.9k points
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