The form of nitrogen most usable to plants is
A)nitrous oxide
B)ammonia
C)nitrogen gas
D)nitrates
E)nitric acid
Answer: D
The form of nitrogen most usable to plants is
A)nitrous oxide
B)ammonia
C)nitrogen gas
D)nitrates
E)nitric acid
AP Environmental Science MCQ
AP Environmental Science Chapter 3
The form of nitrogen most usable to plants is
A)nitrous oxide
B)ammonia
C)nitrogen gas
D)nitrates
E)nitric acid
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