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Displaying 5 out
of 40
questions & answers.
- Aggradation: process that results in an increase in the elevation of low-lying areas
- Degradation: process that results in the reduction of the height of landforms
- Erosion: wearing down of the rocks by the agents of gradation and transportation of the materials from their place og origin to be deposited elsewhere
- Gradation: levelling of the Earth's surface by natural processes
- Mass wasting: movement of rocky materials down a slope under the influence of gravity, aided by water
- Soil conservation: protection of soil from the harmful effects of erosion and exhaustion
- Soil erosion: removal of the topsoil by running water and wind
- Soil profile: view of the different layers of soil
- Weathering: process of disintegration or decomposition of rocks in their place of origin
Q1.
What is 'gradation'? Name the agents of gradation.
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The levelling of the Earth's surface by natural processes is called gradation.
Agents of gradation are the forces of nature such as running water, moving ice, wind and waves.
Q2.
What are the two types of forces that bring about gradation? Differentiate between them.
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List the factors that control the rate of weathering.
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The rate of weathering depends on rock-forming minerals, the climate of the region, vegetation of the region, temperature, time, relief, and plant and animal action.
Q4.
What is denudation?
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What are earthflow and mudflow?
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