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Question

Which of the following process is responsible for formation of delta at a place where river meets the sea?

A
Emulsification
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B
Coagulation
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C
Colloidal formation
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D
Peptisation
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Solution

The correct option is C Colloidal formation
River water is a colloidal solution of clay and sea. Water contains various electrolytes. When river water comes in contact with sea water, then the electrolytes present in sea water coagulate the suspended colloidal particles which ultimately settle down at the point of contact.

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