Exam 14: Glacial and Periglacial Landforms

Glaciers move because:

On the illustration, the landforms at A are:

Oval or spoon-shaped hills that form in groups beneath an ice sheet glacier and indicate the direction of movement are:

__________________ is a sinuous ridge of sand and gravel, formed at the bottom of an ice tunnel or channel that drains the ice sheet.

The Ice Age is composed of multiple glaciations and interglaciations.

A debris ridge along either side of a trough of an alpine glacier is a(n):

A depression resulting from gravel building up around stagnant ice, which then melts, is a/an:

The melting of a glacier results in:

The most recent glaciation extended as far south as the Ohio River.

The North Pole is covered by a continental ice sheet.

When an alpine glacier erodes to the sea then melts, the ocean flooded valley is a(n):

Alpine glaciers form by:

Till plains are poor for agricultural productivity.

Define till and drift. Thoroughly explain the significance of this distinction. Draw a two-circle bull's eye (Venn Diagram), and label the circles appropriately with the two words till and drift.

Pieces of ice that break off of a glacier and drift out to open sea are:

The melting of an ice sheet during a period of warming climate is a(n):

The two types of glacial drift are BEST called:

A single episode or time period in which ice sheets formed, spread, and disappeared is BEST called a(n):

Tributary glaciers more extensively erode their valleys than the main glacier they join.

The most recent glaciation in North America is called the: