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WAEC Geography 1991 (August) Question 27

Question 27

Environmental Hazards and Conservation

Water pollution is caused by all the following except

  1. A.increased silt load
  2. B.sand filling
  3. C.sewage disposal
  4. D.industrial effluent
  5. E.mineral workings
Show the answer and explanation

Answer: B (sand filling)

Explanation

Sand filling reclaims land; silt, sewage, effluent and mine waste dirty water.