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Biology
Given below is the flow chart of sewage treatment. Identify A, B, C and D and select the correct option <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/biology/74b2fda400bc8ec7f49d33103507da6b-.png />
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Q. Given below is the flow chart of sewage treatment. Identify $A, B, C $ and $D$ and select the correct option
Microbes in Human Welfare
A
$A$-Mechanical agitation; $B$ -Increased $BOD$
$C$-Activated sludge; $D$-Aerobic sludge digesters
25%
B
$A$-Mechanical agitation; $B$-Reduced $BOD$
$C$-Activated sludge; $D$- Anaerobic sludge digesters
50%
C
$A$-Microbial digestion; $B$- Activated sludge
$C$-Reduced $BOD$; $D$-Anaerobic sludge digesters
25%
D
$A$-Microbial digestion; $B$-Mechanical agitation
$C$-Reduced $BOD$ ; $D$-Aerobic sludge digesters
0%
Solution:
Correct answer is (b) $A$-Mechanical agitation; $B$-Reduced $BOD$
$C$-Activated sludge; $D$- Anaerobic sludge digesters
