"Glaciers Have No Defined Cleavage Planes, but Instead Flow Plastically

question 11

Multiple Choice

"Glaciers have no defined cleavage planes, but instead flow plastically." Evaluate this statement.

• A) This statement is true, but it only applies to the upper part of a glacier.
• B) This statement is false. Ice has cleavage similar to the mineral mica, and ice behaves like mica would under the same pressure.
• C) This statement is partially true. The flow of glaciers is very slow and more similar to gravel than to plastic.
• D) This statement is false. Glaciers do flow plastically, but also have well-defined cleavage planes similar to mica.

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Definitions:

Causality

The relationship between cause and effect, where one variable is demonstrated to directly cause a change in another variable.

Attrition

The loss of participants from a study over time, which can impact the validity of research outcomes.

Study

The act of examining and investigating a subject in detail in order to discover new information.

Research Methods

The techniques and procedures used to conduct scientific studies to gather and analyze data.