SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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in desert areas
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on the banks of rivers
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at river mouths
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in valleys formed by glaciers
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Detailed explanation-1: -Deltas form as rivers empty their water and sediment into another body of water, such as an ocean, lake, or another river.
Detailed explanation-2: -If the rate of sediment supply exceeds the rate of sediment removal by waves and tidal currents, a buildup of sediment occurs at river mouths. These deposits, which commonly assume triangular shapes in planar view, are termed deltas because they resemble the Greek capital letter delta ().
Detailed explanation-3: -River water is a colloidal solution of clay and sea water contains a number of electrolytes. When river water meets the sea water, the electrolytes present in the sea water coagulate the colloidal solution of clay resulting in its deposition with the formation of delta.