The four main factors affecting coasts are Geology,
vegetation, sea-level changes and human activities.
Geology:
Depending of which material the coastline is made of can affect the time of
erosion, and will erode much quicker if the coast is weak and made of rocks
such as clays and sand, whereas if the coast is made of a more resistant,
harder rock it will not erode so quickly.
Vegetation: Helps
the protect the coastline, by holding it together with the roots from plants.
Sea-level changes:
Low lying coasts are being drowned by rising sea-levels caused by global
warming, this is a large problem since the worlds most densely populated areas
are.
Sea-level changes:
Low lying coasts are being drowned by rising sea-levels caused by global
warming, this is a large problem since the worlds most densely populated areas
are.
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