A delta forms when

A) ocean waves, especially during storms, pile up sediment along the coast.
B) a steep mountain front collapses sending sediment out into the sea.
C) a river slows and deposits sediment as it enters a lake or sea.
D) windblown dust slides down steep hillsides and into a lake.


C) a river slows and deposits sediment as it enters a lake or sea.

Environmental & Atmospheric Sciences

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