Widening of a river valley takes place due to

  1. Corrosion
  2. Lateral erosion
  3. Corrasion
  4. Hydraulic action
Manish Listener Asked on 5th November 2014 in General Knowledge.
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    Lateral erosion

    Widening of a river valley takes place due to ‘Lateral erosion’. 

    Monis Rasool Professor Answered on 19th April 2015.
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