Q176
The presence of high coliform counts in water indicates
A.
contamination by human wastes
AnswerB.
phosphorus contamination
C.
decreased Biological Oxygen Demand
D.
hydrocrbon contamination
Answer: Option A
Solution
Answer: Option A
Solution:
The presence of high coliform counts in water indicate contamination by human wastes. Coliform bacteria or Escherichia coli is a bacteria that is present in human intestine. It is a useful bacteria. When people discharge fecal matter near water bodies these microorganisms enter water.