define sea dunes and sea arches class 7th based answer
Answers
A stack or sea stack is a geological landform consisting of a steep and often vertical column or columns of rock in the sea near a coast, formed by wave erosion. ...
Without the constant presence of water, stacks also form when a natural arch collapses under gravity, due to sub-aerial processes like wind erosion.
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1.A stack or sea stack is a geological landform consisting of a steep and often vertical column or columns of rock in the sea near a coast, formed by wave erosion. ... Without the constant presence of water, stacks also form when a natural arch collapses under gravity, due to sub-aerial processes like wind erosion.
2.In physical geography, a dune is a hill of loose sand built by aeolian processes (wind) or the flow of water. ... Some coastal areas have one or more sets of dunes running parallel to the shoreline directly inland from the beach.