English

Drains get blocked by ______ and ______.

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Question

Drains get blocked by ______ and ______.

Fill in the Blanks
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Solution

Drains get blocked by plastic bags and cooking oil.

Explanation:

  • Grease from cooking can solidify and adhere to the pipes, while hair accumulates and forms clumps.
  • plastic bags Both obstruct the flow of water and cause blockages in the drainage system.
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Wastewater Treatment Plant (WWTP)
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Chapter 13: Wastewater Story - Exercises [Page 164]

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NCERT Science [English] Class 7
Chapter 13 Wastewater Story
Exercises | Q 1. (d) | Page 164

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