Which community condition most directly increases the risk of cholera transmission?
Correct answer: B. Drinking water contaminated with human feces
- A. Noise from traffic near a school
- B. Drinking water contaminated with human feces
- C. Poor lighting inside a crowded house
- D. Exposure to cotton dust at work
Explanation
Cholera spreads mainly through ingestion of water or food contaminated with feces containing Vibrio cholerae. Traffic noise, poor lighting and cotton dust can harm health but do not directly transmit cholera.
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About Environmental Health and Sanitation
Environmental health examines how water, air, food, housing, waste, noise, chemicals and workplace conditions affect disease and well-being. Sanitation content includes safe water treatment and storage, sewage and solid-waste disposal, food hygiene, vector control and the distinction between personal cleanliness and broader public-health sanitation.
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