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प्रश्न
Mention any three ways by which potable water can be contaminated.
टिप्पणी लिखिए
उत्तर
Contamination of potable water can occur due to
- Improper disposal of sewage
- Defecation and urination near lakes, rivers or ponds
- Drainage of animal wastes and washings from dairies and poultries into water bodies
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Control of Disease Carriers (Vectors)
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