Glaciers

Front

The photograph shows both erosional and depositional features formed by an agent of erosion. Which agent of erosion produced the features shown in the photograph?

Back

glacial ice

Front

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

Back

a glacier dragged rocks over the bedrock

Front

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

Back

moving ice

Front

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?

Back

kettle lake

Front

How were the striations made? Arrows on the map show the location and orientation of glacial striations on the surface bedrock. Dark shading shows the location of large moraines (glacial deposits).

Back

Rocks at the bottom of the glaciers were dragged over the bedrock.

Front

Which landscape feature was most likely formed by glacial activity? Options: an eroded plateau, a flat floodplain, a U-shaped valley, a V-shaped valley

Back

a U-shaped valley

Front

The bedrock at a certain location is deeply scratched, and in some places is covered by a layer of unsorted sediment. Which erosional agent was probably responsible for these features?

Back

glaciers

Front

Over a period of years, a glacier gains more snow mass than it loses. What will be the most likely result of this gain?

Back

The glacier will increase in size, and the ice front will advance.

Front

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

Back

Front

The elongated hills labeled R in the diagram of a receding continental glacier are most useful in determining the

Back

direction the glacier has moved