During the Late Nineteenth and Early Twentieth Centuries, Direct Observations

question 26

Multiple Choice

During the late nineteenth and early twentieth centuries, direct observations showed that a glacier in Switzerland flowed forward in the downhill direction while its snout (terminus) was retreating higher up the valley. Which of the following explains these observations in a rational, scientific way?

• A)The melting rate of ice in the glacier exceeded the rate at which new snow and ice were added to the glacier.
• B)Cooler temperatures meant slower forward glacier flow resulting in snout retreat.
• C)Rocky debris in the valley downhill from the snout was deposited by Noah's flood.
• D)The glacial hypothesis was finally accepted as a scientific theory.

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