Question

Given below are two statements:

Statement (I): Nitrobacteria are obligate autotrophic aerobes
Statement (II): Nitrate will not be produced from $\text{NH}_4^+$ in the absence of oxygen

In light of the above statements, choose the most appropriate answer from the options given below.

• A. Both Statement (I) and Statement (II) are correct
• B. Both Statement (I) and Statement (II) are incorrect
• C. Statement (I) is correct but Statement (II) is incorrect
• D. Statement (I) is incorrect but Statement (II) is correct

Hint:

Because nitrification requires oxygen, waterlogged or flooded soils lack nitrate production, which limits nitrogen availability unless crops can directly absorb ammonium.

Answer 1

The Correct Option is A