Class 7 Courses

Class 7 Science Learning App Download | Water Treatment Learning Apps (iOS & Android)

Class 7 Science Quiz: Complete Course

Water Treatment Quiz App Download & e-Book | 1108

MCQ: 1108

The removal of particles settled at the bottom of a tank is called

  1. coagulation
  2. sedimentation
  3. filtration
  4. chlorination

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Water Treatment Apps (Android & iOS)

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7th Grade Science Apps (Android & iOS)

7th Grade Science App

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