The process which is responsible for the formation of a delta at a place where rivers meet the sea is

Into how many parts are colloidal sols divided according to the nature of interaction between the dispersed phase and the dispersion medium?

Which of the following colloidal systems represents a sol?

Which one of the following does not involve coagulation?

The correct statement$(s)$ related to colloids is(are):
$(A)$ The process of precipitating colloidal sol by an electrolyte is called peptization.
$(B)$ Colloidal solution freezes at a higher temperature than the true solution at the same concentration.
$(C)$ Surfactants form micelles above the critical micelle concentration $(CMC)$. $CMC$ depends on temperature.
$(D)$ Micelles are macromolecular colloids.

Which is $NOT$ an example of a macromolecular colloid?