O Level Biology MCQs – Certification Test 1231

Pollution: Sewage as Cause MCQ (Question 1231) – App & e-Book Download

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MCQ 1231: Untreated sewage may cause:

outbreak of epidemic
cholera outbreaks
typhoid outbreaks
all of above

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Pollution: Sewage as Cause MCQ App & e-Book – O Level Biology Textbook Tests

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