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Secondary sewage treatment is mainly a
Options
(a) physical process
(b) mechanical process
(c) chemical process
(d) biological process
Correct Answer:
biological process
Explanation:
In secondary treatment mainly settled sewage flows to an aerobic biological treatment stage where it comes into contact with micro-organisms which remove and oxidise most of the remaining organic pollutants.
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Question Type: Memory
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Difficulty Level: Easy
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Topics: Conservation and Environmental Issues
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Subject: Biology
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one forms ATP
- The characteristics of class Reptilia are :
- Chrysophytes Euglenoids Dinoflagellates and Slime moulds are included in the
- There are special proteins that help to open up DNA double helix in front of
- End product of citric acidKrebs cycle is
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Conservation and Environmental Issues (111)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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