Question:

Assertion (A): Till date no man made technology has been able to rival the microbial treatment of sewage. Reason (R): Major part of the waste water is human excreta, this may contain organic matter, microbes, and some pathogens.

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Microbes are the most efficient natural cleaners of sewage!
Updated On: Jun 6, 2026
  • Both (A) and (R) are correct and (R) is the correct explanation to (A)
  • Both (A) and (R) are correct but (R) is not correct explanation for (A)
  • (A) is correct (R) is wrong
  • (A) is wrong (R) is correct
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The Correct Option is A

Solution and Explanation

Step 1: Concept
Sewage treatment and waste management.

Step 2: Meaning
Efficiency of biological sewage treatment compared to mechanical methods.

Step 3: Analysis
Microbial treatment is highly effective for sewage because sewage consists primarily of biodegradable organic matter, microbes, and pathogens that biological systems are naturally evolved to process.

Step 4: Conclusion
Microbial systems are efficient because of the nature of the waste described in the reason.

Final Answer: (1)
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