Which of the following process is responsible for the formation of delta at a place where rivers meet the sea?
A
Emulsification
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B
Colloid formation
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C
Coagulation
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D
Peptisation
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Solution
The correct option is B Coagulation
The process of settling of colloidal particles is called coagulation or precipitation of the sol.
River water is a colloidal solution of clay. Seawater contains a number of electrolytes. When river water meets the sea water, the electrolytes present in seawater coagulate the colloidal solution of clay resulting in its deposition with the formation of a delta.