मराठी

Open drain system is a breeding place for which of the following - Science

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प्रश्न

An open-drain system is a breeding place for which of the following

पर्याय

  • Flies

  • Mosquitoes

  • Organisms that cause diseases

  • All of these

MCQ

उत्तर

All of these

Explanation:

In some places, there are open drains to dispose of the sewage. These drains can easily get blocked by plastic bags and can overflow. Therefore, the problems of smell, breeding of mosquitoes, flies and germs are encountered in open drains.

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पाठ 18: Wastewater Story - MULTIPLE CHOICE QUESTIONS [पृष्ठ ९३]

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एनसीईआरटी एक्झांप्लर Science [English] Class 7
पाठ 18 Wastewater Story
MULTIPLE CHOICE QUESTIONS | Q 4. | पृष्ठ ९३
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