Weathering and landform produced by weathering and erosion

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Weathering is the breakdown of rocks,soil and their minerals through direct contact the earth atmosphere ,water,and living things .Weathering refers to the disintregation and decomposition of rocks in contact with different medium .It is related to the condition at which weathering take place.in other word temperature ,pressure ,rainfall,vegetation covers,rock types,and slope condition are major factor to pormotes weathering .
weathering occur in situ(in place ,with no movement )It is the type of erosion .Erosion in where rocks and minerals are moved downward but not in weathering.In nature is continuous struggle for existence as well as supremacy between external of land distruction and internal forces of land deposition.The configuration of earth undergoes regular changes .Rock disintregrate and decomposition and move lower  under gravity and are carried by many factor like running water,glacier,wind waves and tides.All this process through which there is rock wastage and land distruction or land sculpture (art pf modified shape,curving or molding) are collectively called denudation.Weathering is not mobile process but it produce load as well as sediment which is worthy of being tranported by mobile process which is known as erosion .Basically there are 3 type of weathering.
1.Physical weathering
2.Chemical weathering
3.Biological weathering

Physical weathering:
Physical process is of breaking down of rocks into small fragment by physical process without changing in chemical or mineralogical composition .ie no chemical/minerals  elements are added or removed from thr rock.In other word mechanical weathering mean breakdown of rocks by the direct contact of heat,water,ice and pressure .
Type of physical weathering
I.Ice wedging
ii.sheeting
iii.Rooting
Chemical weathering:
Chemical weathering is the process of breakdown of rock,soil by chemical alteration or changes occur in constituent minerals.
chemical weathering is the direct effect of atmosphere or biological chemical in the breakdown of rock ,soil and minerals .
Type of chemical weathering
I.Dissolution
ii.Hydration
iii.Oxidation
Geomorphic significance of weathering
1.Weathering as an aid to mass weasting and erosion .
2.As a factor in the general lowering of land surface 
3.as the contribution in the creation and modification of landforms
4.as a major process formation in the regoliths and soil
Landfom produce by weathering and erosion 
1.Badland-A dry terrain with steep slopes .little or no vegetation 
2.Butte-An isolated hill that typically has that flat stop.
3.Canyon-A deep ravine(a small steam channel )between the cliff.
4.Cave-An underground space created by weathering.
5.Cliff-An area with steep drop of usually formed by erosion .
6.Cuesta-A hill or a ridge with a gantle slope .
7.Gulch-A derp valley that has formed generally by land erosion .
8.Hogback-A narrow ridge of a hill with steep slope and a narrow crest.
9.Hoodoo-A tall thin rock formation protruding from the bottom of badland.
10.Lavaka-A hole in the side of hill caused by erosion .
11.Mesa-An elevation with the flat top and steep cliff like sides.
12.Plateau-An area that is high in elevation and basically flat.
13Ravine-formed by running water which is smaller than canyon.
14Ridge-A chain of hill or mountains .
15.Scree-A collection of brocken rock at the base of cliff.

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