D. Give long answers for the following questions.
1. How does running water carry out its work?
2. Explain the erosional and depositional work of sea waves.
3. Explain the erosional work of glacier.
4. Describe the depositional work of wind.
please give me answer in easy way........
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Answers
Answer:
1.The energy that makes running water move comes from gravity. As water flows downslope from a higher to a lower elevation, the gravitational potential energy stored in water transforms into kinetic energy. About 3% of this energy goes into the work of eroding the walls and beds of stream channels.
2.The erosional and depositional work is mainly through wash and backwash . When the sea waters enters the beach area ,it deposits some of the materials from the sea to the beach. As the sea water retrieve back (backwash),it erodes some meterials at the beach like sand particles back to the sea.
3.Like flowing water, flowing ice erodes the land and deposits the material elsewhere. Glaciers cause erosion in two main ways: plucking and abrasion. They freeze to the bottom of the glacier and are carried away by the flowing ice. Abrasion is the process in which a glacier scrapes underlying rock.
4.In deserts, wind picks up small particles and leaves behind larger rocks to form desert pavement. Moving sand may sand blast rocks and other features to create ventifacts. The sand is transported until it is deposited in a sand dune.
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