O-LevelBiologyEcology & Environment5090/11 · May/June 2012 · Q301 Mark
The diagram shows part of the nitrogen cycle. [Figure 30.1] At which stage do bacteria cause decomposition?
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.
AD
BB
CA
DC
✓ Correct answer
A: D
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Ecology & Environment and see which topics are most likely to come up next.
Sign up free →