O-LevelBiologyEcology & Environment5090/11 · May/June 2020 · Q311 Mark

Which row matches a method of controlling malaria with the explanation of how this method works?

Acovering windows with netting kills mosquitoes

Bspraying oil on rivers kills mosquito larvae

Ctaking anti-malarial tablets stops mosquitoes biting

Dusing insecticides kills malarial parasites

✓ Correct answer

B: spraying oil on rivers kills mosquito larvae

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Topic: Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2020 Paper 1 Variant 1, question 31.

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