A rocky cliff juts out toward the ocean, its rough face jagged and worn. In a process called erosion, water, ice, and wind wear away the rock and change its shape over time. From rivers cutting deep valleys to ocean waves crashing into the shore, erosion changes the face of the earth.
A rocky cliff juts out toward the ocean, its rough face jagged and worn. In a process called erosion, water, ice, and wind wear away the rock and change its shape over time. From rivers cutting deep valleys to ocean waves crashing into the shore, erosion changes the face of the earth.
