1.

Write in detail about the erosional and depositional work of wind.

Answer»

(i) Erosional work of winds:

  • Wind carries small sand particles, small pebbles, etc. along with it. 
  • These particles cause erosion along rocks coming in the way due to friction. 
  • This leads to formation of mushroom rocks, deflation hollows, yardangs, etc.

(ii) Depositional work of winds:

  • Sand particles that blow with the winds are of different shapes and sizes. 
  • Those particles which are very fine are carried to larger distances while the larger ones get transported to shorter distances only. 
  • These sand particles get deposited in deserts and semi-arid climates. As a result, specific landforms are formed. 
  • Sand dunes, barchans, seifs, ripple marks, loessplains, etc. are formed by deposition by wind.


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