Terbentuknya delta pada muara sungai karena ....

   A.   pasir dan sampah organik yang terlalu banyak menumpuk

   B.    campuran pasir, kerikil dan sampah organik cenderung mengendap

   C.    pasir dan kerikil mengandung zat koloid yang bermuatan

   D.   koloid tanah liat terkoagulasi saat bercampur dengan elektrolit laut

   E.    koloid yang muatannya berbeda yang terdapat dimuara

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