Denitrifying bacteria do not necessarily require abundant oxygen for respiration; therefore, they are:
Correct answer: B. In water-logged soil
- A. In well-aerated soils
- B. In water-logged soil
- C. In root nodules of leguminous plants
- D. On the root surfaces of leguminous plants
Explanation
Denitrifying bacteria thrive in environments where oxygen is limited, such as water-logged soils. These bacteria convert nitrates into nitrogen gas in the absence of oxygen. Therefore, option B is correct as it describes the low-oxygen environment that supports denitrification.Options A, C, and D describe environments where denitrifying bacteria are not typically found or are less active.
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