DENUDATION
This involves the process of lowering and also leveling of the earth surface by gradual wearing and breaking away of such earth surface.
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Most forces or agent that promote these wearing and breaking of the earth surface, which is called the agent of denudation. Some of the agents of denudation are wind, water, running, waves and ice.
FACTORS AFFECTING DENUDATION
The rate of denudation always depends on the following factors.
[1] Local climate of the area: All wet climate tends to always increase the rate of denudation more than the dry climate.
[2] Nature of relief: Do you know the higher the relief, the higher the rate of denudation and it is vice versa.
[3] Influence of man: This involves the higher of man activities on the earth surface, the more the rate of denidation and it is vice versa.
[4] The structure of the earth: The more the surface of the earth is soft the greater the rate of denudation and it is also vice versa.
SEQUENCES OF DENUDATION
[1] Erosion: This involves the act of wearing away of the earth surface by an agent of denudation such as wind, waves and running of water.
[2] Weathering: It involves the gradual disintegration of some rock by biological, physical and chemical processes.
[3] Deposition: It involves the dumping of debris in a certain part of the earth where it will accumulate to the soil itself.
[4] Transportation: It involved the removal of unwanted materials to new area or positions.
WEATHERING
This involves the gradual break down of rock by either physical or chemical process.
Factors affecting weathering:-
[1] Types of rocks: All rock is made up of different mineral materials. while some of it is resistant to weathering, while the rest are simply because of their difference in texture, stricture, composition and the size of the rocks.
[2] Relief: Sleep slopes like high mountains always encourage weathering, especially frost action while gentle and even slopes favor chemical weathering.
[3] Living organism: Animal and plant have this great influence on weathering. The root of a plant always promote physical weathering as the root penetrate into the rock and also break them, which make chemical weathering occurs due to vegetative covers that always conserve water in order to produce weak acids in the soil. The animal always bor holes into the rock and break them in addition in order to allow other agents of chemicals weathering to take place.
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