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Functioning ecosystems and succession — Question 12

QCAA 2024, Paper 1 · 1 mark

Q12 · 2024 · Paper 1Unclassified1 mark

QUESTION 12

The diagram shows key processes in the nitrogen cycle.

Biology question figure

Which option correctly identifies I, II and III?

Biology question figure

I

II

III

(A)

nitrites (NO2− )
nitrates (NO3− )
ammonium (NH4+ )

(B)

nitrates (NO3− )
ammonium (NH4+ )
nitrites (NO2− )

(C)

nitrites (NO2− )
ammonium (NH4+ )
nitrates (NO3− )

(D)

ammonium (NH4+ )
nitrites (NO2− )
nitrates (NO3− )

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