Pyramidal Peak

What is the process called when water in cracks in the rock freezes, expands, and contracts, causing the rock to weaken and break?

• Freeze-thaw

• Abrasion

• Basal sliding

• Plucking

Which process involves ice freezing onto bedrock and pulling loose rocks away?

• Rotational flow

• Bergschrund

• Plucking

• Freeze-thaw

What is the term for when angular rock embedded in the ice grinds the hollow as the glacier moves?

• Rotational flow

• Freeze-thaw

• Abrasion

• Plucking

What helps to deepen the corrie in glacial processes?

• Rotational flow

• Abrasion

• Basal sliding

• Bergschrund

Which feature allows rocks to fall into the glacier, fueling the abrasion process?

• Bergschrund

• Plucking

• Freeze-thaw

• Basal sliding