Answer:
Waves meet the shore and cause the crest to spill over the trough.
Explanation:
This activity creates a back and forth movement of the sand which causes them to settle at a certain area below the water.
I would put eater and transportation.
he conquered the Aztecs in 1521
Geothermal activity visible on the surface,acute to extreme seismographic readings. typically on the borders of tectonics plates. (Ring of fire)
