Estuary Waters Are Often Stratified by Salinity with ________ Flowing

Multiple Choice

Estuary waters are often stratified by salinity with ________ flowing over the top of ________.

A) higher salinity river water; lower salinity ocean water
B) lower salinity river water; higher salinity ocean water
C) higher salinity ocean water; lower salinity river water
D) lower salinity ocean water; higher salinity river water
E) higher salinity ocean water; zero salinity river water