Respuesta :
A coastal inlet or bay in which freshwater from rivers mixes with salty ocean water is called a(n) ESTUARY.
Answer:
c. estuary
Explanation:
An estuary is an area along the coast where a river joins the sea. The estuaries are partially closed, having a free connection to the open sea, this connection may be permanent or periodic. In the estuaries, seawater is diluted by freshwater, forming a brackish environment.