Doldrum is the region of very calm and little or no wind on either side of the equator. Doldrums which is also called convergence zone is an equatorial region of the Atlantic ocean which has sudden storms and light unppredictable winds. In addition doldrum is abelt around the earth near the equator where the sailing ships sometimes get stuck on windless water.
Oceans change the land along the shore, forming tall cliffs and jagged coastlines. "The abrasive nature of seawater causes the rocks to erode over a period of time", the statement explains the type of weathering involved in this process
<u>Explanation:
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The abrasive nature of the sea water of the ocean causes erosion in the rocks which are along the shore. And, this occurs for a period of time causes the formation of the tall cliffs sometimes or to the jagged coastline the other time.
The duration of erosion decides the fate of the cliff or coastline. Erosion of rocks are highly evident in ocean shore line due to the effect of salinity of the sea water. The rocks gets eroded firstly to form jagged coastline which on long exposed erosion forms cliff.