A-LevelBiologyInfectious diseases9700/12 · May/June 2016 · Q371 Mark
The proportion of the local population who have malaria in area R is higher than the proportion in area S. Which factor causes this difference?
AArea R has a more humid climate than area S.
BArea R is nearer the equator than area S.
CThere is a higher population in area R than area S.
DThere is less sewage treatment in area R than area S.
✓ Correct answer
A: Area R has a more humid climate than area S.
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