Plate tectonics is the area of science that explains why the surface of the Earth changes and how those changes cause earthquakes.

VOA: special.2010.01.12

He points out that even the driest deserts on Earth have more water than the surface of the moon near its poles.

VOA: special.2009.09.30

Scientists now know,however, that the surface of the Earth is not as permanent as had been thought.

VOA: special.2010.01.12

Most maps of the world show lines that are not on the Earth's surface.

VOA: special.2010.07.14

Scientists say the surface of the Earth is cracked like a giant eggshell.

VOA: special.2011.01.04

This forces apart pieces of the Earth's surface in a violent earthquake.

VOA: special.2011.01.04

These lay deep below the surface of the Earth.

VOA: special.2009.03.04