The shape (or geometry) of the polyatomic ammonium ion, NH4+ is ____________.

________ are components of the hydrologic cycle that release water vapor directly to the atmosphere.

Which best describes the way composite volcanoes are built up?

Metamorphic rocks that contain large crystals embedded in a finer grained matrix have a ________ texture.

The more ________ in a magma, the more its viscosity increases.

Cinder cones are built from ________.

________ denotes the exposed, crescent-shaped rupture surface at the head of a slump.

Which of the following statements about mass movement is true?

As an erosional process, how is mass movement unique from wind, water, and ice?

Large, volcanic depressions formed by subsidence and collapse are known as ________.