Geology102:Quiz-Unit14

What was present during the last glacial maximum event, also known as the last Ice Age?

• Laurentide ice sheet

• Sahara Desert

• Amazon Rainforest

• Himalayan Mountains

Which ice sheet is shown in a cross-sectional view for size comparison with the Antarctic ice sheet?

• Greenland ice sheet

• Siberian ice sheet

• Patagonian ice sheet

• Himalayan ice sheet

What did the 1948 study on the Jungfraufirn Glacier reveal about ice movement?

• Ice at the surface is faster than ice below.

• Ice at the surface is slower than ice below.

• Ice at the surface is stationary.

• Ice at the surface melts faster than ice below.

What is a unique property of ice that affects glacier movement?

• Ice expands under pressure.

• Ice melts under pressure.

• Ice becomes more rigid under pressure.

• Ice becomes lighter under pressure.

What are crevasses on a glacier's moving surface?

• Large ice blocks

• Deep cracks

• Smooth ice surfaces

• Ice bridges

What is the zone where the ice balance is growing called?

• Zone of ablation

• Zone of melting

• Zone of accumulation

• Zone of erosion

What is the primary process that creates erosional landforms in glacial environments?

• Addition of material

• Removal of material

• Chemical weathering

• Volcanic activity

What is rock flour, and how is it formed?

• Coarse gravel formed by volcanic eruptions

• Fine powder formed by grinding of sediments by glaciers

• Large boulders formed by river erosion

• Sand formed by wind erosion

What is an arête?

• A bowl-shaped feature

• A sharp ridge between valleys

• A steep cliff formed by erosion

• A valley formed by a river

Which type of moraine is located at the end or terminus of the glacier?

• Lateral moraine

• Medial moraine

• Terminal moraine

• Recessional moraine