Which one of the following is NOT a speleothem?

Abrasion and plucking generally involve what part of a glacier?

The term karst topography was first used in ________.

The removal of blocks from the bed of a stream channel is known as ________.

The Mariana Trench provides an example of a location where ________ is occurring.

Where are the only present-day continental ice sheets?

The term karst topography was first used in ________.

The most prominent feature on the ocean floor are the ________.

Which of the following is an example of a rock with an intermediate composition?

________ is (are) not part of an ophiolite complex.