O-LevelBiologyEcology & Environment5090/12 · Oct/Nov 2018 · Q301 Mark

Which labelled arrow in the nitrogen cycle represents nitrogen fixation? [Figure 30.1]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

A[Label A in Figure 30.1]

B[Label B in Figure 30.1]

C[Label C in Figure 30.1]

D[Label D in Figure 30.1]

✓ Correct answer

A: [Label A in Figure 30.1]

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Topic: Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2018 Paper 1 Variant 2, question 30.

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