Multiple Choice
Nitrogen-fixing bacteria and nitrifying bacteria convert atmospheric nitrogen into different compounds of nitrogen such as:
I. ammonium ion
II. ammonia
III. nitrate ion
IV. nitrite ion.
Which of the following is the correct sequence of formation of the nitrogen compounds?
A) I, II, III, and IV
B) II, I, IV, and III
C) II, I, III, and IV
D) I, II, IV, and III
Correct Answer:

Verified
Correct Answer:
Verified
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