Biology for IGCSE & O level - Organisms And Their Environment (Section 2 - No. 48)
Which of the following is a correct statement about the nitrogen cycle?
Nitrogen is fixed by only the animals.
Decomposers are involved in recycling nitrogen.
Nitrification converts ammonia to nitrates.
Denitrification converts nitrates to nitrogen gas.
Explanation
Decomposers, nitrifying bacteria, and denitrifying bacteria all play key roles in the nitrogen cycle.
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