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Biology · PYQ NEET UG 2017

हिन्दी

Which of the following in sewage treatment removes suspended solids?

  1. A
    Tertiary treatment
  2. B
    Secondary treatment
  3. C
    Primary treatment
  4. D
    Sludge treatment
View Answer & Solution

Correct answer · Option C

Primary treatment

Explanation

Primary treatment in sewage treatment involves physical removal of particles (floating and suspended) through filtration and sedimentation.

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