Describe how the following types of erosion occuri) Sheet erosionii) Gulley erosioniii) State two economic uses of soils
Answer Text: i) - This occurs on gentle slopes which are bare- When heavy rain falls, water spreads over a large area- As water moves, it removes the top layer of soil evenly over the areaii) - It occurs on steep slopes- Rain water cuts deep grooves/ channels/ rills on the slopes - The channels are widened and deepened to form gullies, through which soils are carried awayiii) - Soils are sources of valuable minerals- Soils are used raw materials for pottery/ ceramics/ tiles/ bricks- Soils are used for agriculture- Some soils are mixed with herbs and sold for medicinal purposes e.g. clay/ sold directly for food.
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