Water flowing back down the beach after a wave has broken is known as ________.

Intermittent streams are also called ________.

Which one of the following is the one best measure of the wetness or dryness of a region?

________ is(are) 20 times more effective than carbon dioxide at absorbing infrared radiation emitted by Earth.

Assume that you have just examined several flat-lying sedimentary layers. After much study you determine that there is a considerable span of time for which no sedimentary rock layer exists at this site. You have just discovered a(n) ________.

An intermittent lake on the floor of a desert valley is called a(n) ________.

________ is(are) 20 times more effective than carbon dioxide at absorbing infrared radiation emitted by Earth.

The general term ________ denotes a buried, erosional surface where rock layers are missing.

Currents within the surf zone that flow parallel to the shore are known as ________ currents.

________ refers to the tendency for a foundation material to lose its internal cohesion and fail mechanically during earthquake shaking.