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Katherine Naim

on 18 July 2015

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Mass Wasting
The low lying tracts are gradually filled up through deposition of sediments by running water, ground water, wind, glaciers, wave, currents and tides in seas and ocean. This process diminish the reservoir capacity of the water forms, limiting its usefulness for flood control, water supply or hydroelectric power generation.
2 important classifications of weathering processes exist - physical & chemical weathering. Mechanical or physical weathering involves the break down of rocks and soils through direct contact with atmospheric conditions.
Excessive erosion causes both "on-site" & "off-site" problems. On-site impacts include decreases in agricultural productivity & ecological collapse, both because of loss of the nutrient-rich upper soil layers. Off-site effects include sedimentation of waterways & eutrophication of water bodies, as well as sediment-related damage to roads& houses. Erosion is one of the most significant environmental problems world-wide.
Exogenous Process
The process of external origin.
The process by which rocks are broken down into small grains and soil.
Processes that move
material to another site
under the influence of transporting agents.
Mass Wasting
The process by which soil, sand, regolith and rock move downslope.
The process of deposition of sediments.
The second classification, chemical weathering, involves the direct effect of atmospheric chemicals or biologically produced chemicals also known as biological weathering in the breakdown of rocks, soils and minerals. Chemical reactions are most intense where the climate is wet & hot. However, both types of weathering occur together & each tends to accelerate the other.
The materials left over after the rock breaks down combined with organic material creates soil. Many of Earth's landforms & landscapes are the result of weathering processes combined with erosion & re-deposition.
When the gravitational force acting on a slope failure/mass wasting occurs.
Mass wasting may occur at a very slow rate, particularly in areas that are very dry osuch that vegetation has stabilized the surface. it may also occur at very high speed.
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