Q. 5 B5.0( 2 Votes )

Give reasons.

Silt deposits are less at estuaries than at deltas.

Answer :

Delta is the flat, low-lying area formed at the mouth of the river. The deposition and accumulation of components, sediments, minerals and huge amounts of debris results in the formation of deltas. The result is the formation of fertile lands. They are formed in areas having low tides and plain surface. Thus, the absence of rapid tidal actions and the topography of the land makes the deposition and accumulation of silt in the delta.


An estuary is a water body that is formed when the river meets the sea. It does not carry, accumulate or deposit any components because of the constant sea waves. They do not create any fertile lands. Rather the area is more suitable for fishing activities. They are formed in areas with high tides and valleys. Thus the slit and other components they carry are not deposited at its mouth because of the constant actions of the sea waves. The constant lashing of the high tide and the resultant environment does not make the conditions apt for the deposition of silt.


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