O-LevelBiologyEcology & Environment5090/11 · May/June 2017 · Q281 Mark

Why does an ecosystem need to be exposed regularly to sunlight?

AEnergy is converted to biomass.

BEnergy is lost as heat.

CEnergy is lost to decomposers.

DEnergy is reflected by plants.

✓ Correct answer

B: Energy is lost as heat.

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Topic: Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2017 Paper 1 Variant 1, question 28.

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