Self-purification of running streams may be due to: – McqOptions

MCQOPTIONS

1.	Self-purification of running streams may be due to:
A.	dilution, sedimentation and oxidation
B.	sedimentation, oxidation and coagulation
C.	dilution, sedimentation and coagulation
D.	dilution, oxidation and coagulation
Answer» B. sedimentation, oxidation and coagulation

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