O-LevelBiologyEcology & Environment5090/11 · May/June 2012 · Q311 Mark

Which method of control would not be effective against the spread of the malarial parasite?

Adrainage of swamps and marshes

Bsafe disposal of sewage solids

Csleeping under a mosquito net

Dspraying walls of houses with insecticide

✓ Correct answer

B: safe disposal of sewage solids

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Topic: Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2012 Paper 1 Variant 1, question 31.

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