A village has many cases of diarrhoea associated with a nearby open drain carrying household wastewater. Which intervention addresses the environmental source most directly?
Correct answer: B. Constructing a covered and properly flowing drainage system
- A. Providing residents with perfume for unpleasant odours
- B. Constructing a covered and properly flowing drainage system
- C. Advising residents to increase daily bathing
- D. Distributing stronger insect repellents to all households
Explanation
Safe drainage removes wastewater from human contact and reduces contamination around homes. Bathing and insect repellents do not correct the sewage and wastewater pathway that is causing environmental contamination.
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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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