Weathering, Erosion, or Deposition?

Rocks being made smooth by tumbling across a streambed

Water dropping sand on the beach

Water getting into cracks, freezing, and breaking the rocks or pavement apart

A mudslide flowing down a steep hill

Muddy water being carried away by a fast-moving river

Layers of sediment forming at the bottom of the ocean

Deltas forming at the mouths of rivers

Caves being formed by acid rain dissolving underground limestone

Flood water pounding against a canyon wall

Ponds filling up with sediment and becoming marshes

Rain washing away soil from a hillside