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O-LevelBiologyEcology & Environment5090/11 · Oct/Nov 2017 · Q61 Mark

When is carbon dioxide absorbed, and when is it released, by an ecosystem such as a tropical rainforest?

Adarkness, darkness
Bdarkness, daylight
Cdaylight, darkness
Ddaylight, daylight

✓ Correct answer

C: daylight, darkness

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About this question

Topic
Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, Oct/Nov 2017 Paper 1 Variant 1, question 6.

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