Which of the following best explains the formation of a medial moraine on a glacier?
A) A gravel pile that marks periods of glacial readvancement
B) A ridge of debris carried down the center of glacial ice
C) Sands and gravels that fill a subglacial stream channel
D) A ridge of debris carried along the sides of an advancing glacier
Q. 2 - Which of the following descriptions does not specifically apply to sediments carried away from the glacier by meltwater streams?
A) Deposited in stratified layers
B) Composed of clay-rich materials
C) Often well sorted
D) Composed of sands and gravels
Q. 3 - There have been several instances in the last 150 years when valuable materials such as diamonds have been found contained in glacial debris.
If one wanted to try to trace such valuable materials back to their source, which moraine would be most useful for tracing valuable gold deposits back to their bedrock source area?
A) Recessional moraine
B) Terminal moraine
C) Lateral moraine
D) Esker
Q. 4 - What bodies of water are formed when a stagnant block of glacial ice near the terminus becomes partly or completely buried in glacial sediments, eventually melting to create a lake?
A) Tarns
B) Paternosters
C) Braided streams
D) Kettle lakes
Q. 5 - Lateral and medial moraines are found in connection with ________ glaciation.
A) alpine
B) ice shelf
C) continental
D) ice cap
Q. 6 - Read the following excerpt from The Works of John Playfair (1822). What glacial landform is being described?
For the moving of large masses of rock, the most powerful engines without doubt that nature employs are the glaciers.Rock fragments they gradually transport to their utmost boundaries, where a formidable wall ascertains the magnitude, and attests the force, of the great engine by which it was erected.
A) Arte
B) Drumlin
C) Horn
D) Moraine
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