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None of the following is a form of mass movement except

  • A.abrasion of a river bed
  • B.solution of limestone along joints
  • C.soil creep on a hillside
  • D.deflation of a desert surface

Answer: C

Correct answer: soil creep on a hillside

Mass movement is the downslope movement of material under gravity without a transporting medium, and creep is its slowest form. The other three all involve an agent doing the work: a river abrading its bed, water dissolving limestone, and wind removing fine material. Mass movement is distinguished precisely by gravity acting alone on the mass.

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