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Question 14022
NEET Biology · Medium

Microbes in Human Welfare: Primary Treatment MCQ

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Primary TreatmentMediumQuestion 14022

Question

Primary sewage treatment mainly removes:

  1. A
    Large and suspended particles physically
    Correct
  2. B
    Dissolved gases by photosynthesis
  3. C
    All microbes instantly
  4. D
    Only heavy metals by genetics

Correct answer

Large and suspended particles physically

Explanation

Screening and sedimentation remove coarse solids.

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