waves approach an irregular coastline Hydraulic Action - An erosion process - where air becomes trapped and compressed in a joint / crack in a rock by a breaking wave‚ gradually breaking rock apart. Abrasion - An erosion process where cliffs are worn away by rocks and boulders thrown against them by the waves Solution - An erosion process where acids in the sea water gradually dissolve minerals in rocks. Wave Pounding - An erosion process where the shear force of the waves constantly hitting
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A) be rugged and of great relief as a result of uplift in the absence of weathering and erosion. B) consist of high mountains and hills with smooth‚ gentle slopes. C) be of very low relief as a result of weathering and erosion in the absence of uplift. Answer: C 5) Which of the following is not exogenic in nature? A) weathering B) erosion C) denudation D) batholith formation E) mass wasting
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A waterfall is a feature of erosion found in the youth stage of a river. Waterfalls are found in areas with bands of hard and soft rock (otherwise known as resistant and less resistant rocks). The hard rock takes longer to erode than the soft rock (differential erosion) so the river erodes the land at different rates. The river erodes the soft rock by the main processes of erosion including Hydraulic Action (the force and power of the moving river) and Abrasion (the scraping of the load against
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(viii) Forest-fires (ix) Acid rain (x) Development projects and housing projects. Effects of Deforestation: The ill-effects of deforestation are summarized below: (i) Soil erosion: Soil is exposed to wind‚ sunlight‚ and evaporation due to deforestation. Soil fertility goes down due to soil erosion and rapid leaching of essential mineral nutrients. (ii) Harm to fisheries: As the soil is eroded‚ it accelerates siltation in dams‚ rivers‚ and the coastal zone. The increased sedimentation
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Describe and explain the concept of a sediment cell and how it can be used in coastal management A sediment cell is a length of coastline in which interruptions to the movement of sand or shingle along the beaches or near shore sea bed do not significantly affect beaches in the adjacent lengths of coastline. In addition to this‚ it can also be referred to a sediment that is moved along the coast by long shore drift appears to form part of a circular cell which leads to it eventually returning up
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ecosystem services including flood attenuation‚ erosion control‚ toxicant‚ phosphate and nitrate assimilation‚ and carbon storage. The main impacts on the wetlands in the area are associated with historic land use. They include drainage channels and furrows that modify wetland hydrology and reduce their functionality. Eight wetlands in the area were identified for rehabilitation intervention. Concrete and gabion structures are used to stabilize erosion and help to maintain wetland health. The wetland
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than others‚ making waves stronger and more powerful. I think wind is the most important factor. 3. I think the steepest beach will be Hurlstone because it’s the end of the beach where pebbles will be at their smallest and roundest due to erosion. 4. I think the gentlest beach will be gore point because it’s at the beginning of the beach where the pebbles will be at their largest and more angular. The study took place at Porlock bay in Somerset‚ Southwest England (see maps on
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is a place where water flows over a vertical drop in the course of a stream or river. Landforms in upland regions are dominantly created by erosion processes‚ where land is worn away. Generally‚ the volume and discharge of rivers in upland regions tends to be low‚ and the river uses much of it’s energy in overcoming friction. The erosion direction here is vertical‚ or straight down into the bed of the river. This has the effect of destabilising the slopes on either side of the river‚ creating
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Chris Fields Dr. Davis (H) English 10 12 March 2014 Extending a Hand with USAID As people graduate from High school or College they are often left with a feeling of emptiness or confusion. They may ask themselves questions like what’s next? How can I reach my full potential? How can I give back to the world? Some people may go off to college‚ some will get jobs they love‚ some will get jobs they hate‚ and still others will join programs that give back like the Army‚ Peace Corps‚ or USAID. USAID is
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sea. Erosion occurs via rain‚ weathering by wind and frost. Its impact is often seen in soil creep‚ slumping and landslides. | Corrosion | When waves approach the coastline they are carrying material such as sand‚ shingle‚ pebbles and boulders. Abrasion occurs when this material is hurled against cliffs as waves hit them‚ wearing the cliff away. | Human activity | Much building and recreation occurs at the coast‚ and this increases pressure on cliff tops‚ making them more liable to erosion and
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