Crash Course Geography: Glaciers and Their Impact

The video explores the role of glaciers in shaping Earth's landscapes and climate. It discusses the types of glaciers, their historical impact, and how they move and reshape the land. The video highlights the influence of glaciers on New York's geography and the potential future implications of glacial melting. It concludes with an acknowledgment of indigenous lands.

What natural feature did the speaker grow up near in Ithaca, New York?

• The Great Lakes

• The Finger Lakes

• The Mississippi River

• The Rocky Mountains

What percentage of the Earth's land surface was covered by ice in 2021?

• 20%

• 5%

• 10%

• 15%

What is the term for a glacier found in a mountain range?

• Continental glacier

• Ice sheet

• Alpine glacier

• Valley glacier

What is the term for the period when temperatures drop and ice sheets grow?

• Interglaciation

• Glaciation

• Ice melt

• Permafrost

What is the name of the ridge formed by the debris left behind by a retreating glacier?

• Ground moraine

• Medial moraine

• Lateral moraine

• Terminal moraine

What is the term for boulders that are far from their place of origin due to glacial movement?

• Moraines

• Erratics

• Cirques

• Arêtes

What is the name of the sharp ridge formed between two adjacent cirques?

• Crevasse

• Tarn

• Arête

• Horn

What is the term for the deep vertical cracks that form on the surface of a glacier?

• Cirques

• Moraines

• Arêtes

• Crevasses

What is the potential global sea level rise if the Thwaites Glacier breaks?

• 2 meters

• 1 meter

• 3 meters

• 0.5 meters

What is the term for the small mountain lakes formed by dammed moraines?

• Tarns

• Erratics

• Arêtes

• Cirques