Which of the Following Is True of Glacial Movement

question 90

Multiple Choice

Which of the following is true of glacial movement?

• A)the rate of surface motion is usually identical to the basal slip rate.
• B)the internal flow just below the surface is greater than the basal flow.
• C)all glaciers move just a few centimeters per year.
• D)the basal ice layer does not move downslope.
• E)greatest erosion occurs at the ice surface.

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Definitions:

Biological Extinction

The complete disappearance of a species from Earth, meaning no living members of the species exist anymore.

Native Vegetation

Plant species that are indigenous to a particular area and have not been introduced by human activity.

Habitat Destruction

The process in which natural habitat is rendered unable to support the species present, leading to the displacement or destruction of its biodiversity.

Exotic Species

Non-native species introduced to an area where they do not naturally occur, often leading to environmental imbalance.