Glaciers

What type of glacier forms in a mountainous area?

• alpine

• continental

• till

• moraine

What type of glacier covers huge areas of land?

• alpine

• continental

• till

• moraine

The photograph shows scratched and grooved

bedrock with boulders on its surface. The scratches and grooves were most likely created when

• alternating thawing and freezing of water cracked the bedrock

• flooding from a nearby lake covered the bedrock

• a glacier dragged rocks over the bedrock

• rocks from a landslide slid along the bedrock

The photograph shows a valley. Which agent of erosion most likely produced this valley's shape?

• blowing wind

• ocean waves

• moving ice

• running water

The diagram represents a stream valley. Which diagram below best shows how this valley might be modified after a glacier has moved through it?

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The diagram shows the edge of a continental glacier that is receding. R indicates elongated hills. The ridge of sediments from X to Y represents a landscape feature. The elongated hills labeled R are most useful in determining the

• age of the glacier

• direction the glacier has moved

• thickness of the glacier

• rate at which the glacier is melting

The cross sections show a three-stage sequence in the development of a glacial feature. Which glacial feature has formed by the end of stage 3?

• kettle lake

• finger lake

• esker

• kame

Till deposited in a moraine of a glacier is best described as

• sorted according to particle size

• sorted according to particle shape

• sorted according to particle texture

• unsorted

This force causes the movement of glaciers

• pressure
• ice age
• gravity
• firn

Where is the zone of accumulation found?

• At the start of a glacier, in highland areas

• In the middle of a glacier

• At the end of a glacier, in lower altitudes