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How are open drains harmful for human health? - Science

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Question

How are open drains harmful to human health?

Short Note

Solution

 Open drains are harmful to human health

  1. Open drains have a foul smell and by that, they cause air pollution.
  2. Mosquitoes and flies mostly breed in dirty water or areas and in open water.
  3. Humans are infected with water-borne diseases such as cholera, typhoid, and diarrhoea, as open drains infect clean water.
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Sanitation and Disease
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Chapter 18: Wastewater Story - VERY SHORT ANSWER QUESTIONS [Page 95]

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NCERT Exemplar Science [English] Class 7
Chapter 18 Wastewater Story
VERY SHORT ANSWER QUESTIONS | Q 13. | Page 95
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