Glaciers Can Deform Internally to Behave Like a Plastic Material

question 22

Multiple Choice

Glaciers can deform internally to behave like a plastic material and flow because __________.

• A) there are layers of pure liquid water between the annual layers of ice
• B) there are round rock particles within the ice that act like little ball bearings
• C) the bonds between successive layers of ice are weaker than those within a single layer, allowing the glacier to slip like a stack of cards
• D) there are layers of air between the layers of ice

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Definitions:

Computer Model

A simulation or representation of a complex real-world system using computer algorithms to predict its behavior under various scenarios.

Seismic-reflection Study

A method used in geophysics to explore subsurface structures by sending seismic waves into the earth and analyzing the reflected waves.

Geologic Cross Section

A diagram or representation showing the vertical profile of the Earth's crust to illustrate the positions of rock layers and structures.

Fossil Fuels

Natural fuels formed from the remains of living organisms, such as coal, oil, and natural gas.