Coast
I. Introduction
Coast, an important ecosystem on Earth, is the sphere where nation meets the sea (ocean). A coastal zone is an unstable firmament which is affected by weather, mass movement erosion, transportation and deposition. too inland effects such as fresh urine transference, nutrients, sediments or pollution may also affect coastal formation. Under the effect of indisputable different conditions as well(p) as geographical morphology, many forms of coasts are organize including sandy shore, pugnacious shore, mangroves, estuarine, salt marshes, etc. Coasts are important features to the eco systems as the study of coasts involve the study of waves, transportation, species living within coastal area, etc.
Figure 1: First row - sandy b apiece, careeny beach
Second row mangroves, estuarine
In this essay, coastal erosion and coastal deposition will be studied as both factors determining the type of the coast; with examples, diagrams and fieldwork result.
II. Coastal erosion
- Occurs along beaches and coastlines. baksheesh and water effect play important roles in the ever-changing of coastlines. Coastal erosion takes land away from one area to deposit it someplace else.
1.
There are 4 types of coastal erosion:
* Hydraulic Action: is the type of erosion in which wave drives air into cracks within rocks, compressing air inside. As wave retreats, the densely pressed air escapes with explosive force, pause rocks into smaller bits. The stronger the wave, the greater the explosive force.
* Abrasion: Particles in waves collided with the rock surface, rubbing away the coastline.
* Attrition: Particles transported in waves collide with each other, breaking down into smaller particles that are smoother and rounder.
* corrosion: Acids in seawater have chemical reaction with certain rock types, causing dissolution.
2. Coastal erosional features:
a) Cliffs and wave cut-platforms:
Cliffs are formed when water attack rock surface between impression and high...If you want to get a full essay, order it on our website: Orderessay
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