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The Question Has Four Options. Choose the Correct Answer: Sewage Water is Purified by - Biology

MCQ

The question has four options. Choose the correct answer:
Sewage water is purified by

Options

  • microorganisms

  • light

  • fishes

  • aquatic plants

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Solution

microorganisms

Concept: Waste and Its Categories
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APPEARS IN

Frank Class 9 Biology ICSE
Chapter 23 Safe Disposal of Wastes
Exercise | Q 12.1 | Page 212
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