WAEC Biology 2012 Objective — Question 48
Question 48 of 60 from the West African Examinations Council (WAEC) Biology 2012 Objective paper, with the correct answer and a full explanation.
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Which of the following factors is likely to increase the incidence of cholera?
- A. Access to clean water
- B. Buildup of waste products, predation and parasitism as density-dependent factors while unfavourable climate is notCorrect
- C. Effective sanitation
- D. Vaccination programmes
Explanation
Buildup of waste products, predation and parasitism are density-dependent factors while unfavourable climate is a density-independent factor — these buildups increase disease incidence including cholera.
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