It can blow sand and small rocks into the sides of mountains. The rock wears away, and the shape of the mountain changes.
They are strong storms with high winds and lots of rain that start in the ocean and move to land. They can move large amounts of sand and rock.
They are usually made of a line of trees that protect the land form strong winds. They are used to make sure good soil won't get blown away.
They are ditches found near bodies of water. If a river floods, the water fills up the ditch.
They happen when water from rivers, lakes, or oceans spills out onto the land. They usually happen after storms.