A biogeochemical cycle refers to the ________.

If a beach is in an east-west orientation and the waves are approaching the shore from a southeasterly direction, in which direction will the longshore drift be?

All else being equal, water will flow faster in a stream with ________ and a ________ wetted perimeter.

Large, thick-crusted, nonvolcanic mountain belts, like the Himalayas, are associated with ________.

Marine magnetic anomalies result from seafloor spreading in conjunction with ________.

Consult the figure below. Compared with amphibolite metamorphic facies, greenschist facies ________.

Which of the following lists compositions in order of increasing silica content?

Limestone is most likely formed in which of the following environments?

In a region characterized by a parallel series of ridges and valleys, a ________ drainage network is expected.

The figure below is an aerial photograph of a meandering stream. The light-colored features labeled with arrows below are ________.