During a rainstorm water is running down a hill composed of solid rock. The water then reaches an area of the hill with unsaturated soil and gentler slope. What will the effect be?

erosion will occur in that part of the hill.

Explanation:

Rainstorm refers to the rainfall which occurs with storm. The rainstorm is responsible for erosion of the soil where there is a slop which removes the upper layer of the soil and water comes to downward in the form of mud flood which destroy everything. At the hill, rainstorm will occur which does not causes erosion due to rocky surface but when this water goes to those areas where soil is present. This water takes that soil with itself downward and erosion of the soil will occur.

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