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WAEC Biology 2012 Question 47

Question 47

Microorganisms and Health

The detection of vibro cholerae in public drinking water is a sign of

  1. A.clean water.
  2. B.outbreak of disease.
  3. C.water pollution.
  4. D.decayed organisms in the water.
Show the answer and explanation

Answer: C (water pollution.)

Explanation

Vibrio cholerae comes from human faeces; finding it in drinking water shows the water is polluted with sewage.