Downslope marine flows comprised of mixed masses of sand, mud, and water are called:

A) turbidity currents
B) longshore currents
C) tidal currents

Turbidity Currents

Underwater currents of rapidly moving, sediment-laden water moving down a slope, caused by the increased density from suspended particles.

Mixed Masses

Compositions of varying substances or materials combined together, often without uniformity.

Downslope Marine

Describes processes or movements occurring towards the bottom of the ocean slope, often involving sediment transport from shallower to deeper waters.