I would say that during periods of glacial advance, ice when it reaches the ocean like in Greenland, can break off and form icebergs in seawater. This can then be a shipping hazard such as occurred for the Titanic around the turn of the 20th century.
Answer:
C
Explanation:
The water particles do NOT travel with the wave
There main building material was mud bricks.
I am pretty sure its c but if not i am very sorry.