Crater
By: MSR
Crater bowl-shaped pit or depression on the surface of a planet or a moon.
Craters are formed in two ways: by volcanic activity and by meteorites impact. On Earth the more common means of crater formation is by volcanic activity. Collapse craters are formed when the pressure of the molten rock, or magma, inside a volcano can no longer support the weight of the rock or lava above it. Collapse craters are usually found at Mount Loa. Collapse craters are formed when the pressure of the molten rock, or magma, inside a volcano can no longer support the weight of the rock or lava above it. This type of crater is called an impact crater. This type of crater is called an impact crater they have been found on the planets Mercury, and the earths moon.
