Glaciers and U-shaped Valleys

What is a U-shaped valley?

• A geological formation created by the erosion of a glacier

• A type of volcanic crater

• A man-made canal

• A natural hot spring

How are U-shaped valleys formed by glaciers?

• Volcanic activity

• Deposition of sediment by moving glaciers

• Erosion and abrasion by moving glaciers

• Chemical weathering

What are the key characteristics of a U-shaped valley?

• Steep sides, wide bottom, and a flat floor

• Wide top, narrow bottom, and a steep floor

• Flat sides, narrow bottom, and a steep floor

• Narrow bottom, steep sides, and a rounded floor

What role does erosion play in the formation of U-shaped valleys?

• Erosion by glaciers

• Erosion by volcanic activity

• Erosion by wind

• Erosion by ocean waves

How do U-shaped valleys differ from V-shaped valleys?

• U-shaped valleys are formed by erosion from ocean waves, while V-shaped valleys are formed by erosion from underground water.

• U-shaped valleys are formed by wind erosion, while V-shaped valleys are formed by volcanic activity.

• U-shaped valleys are formed by glaciers, while V-shaped valleys are formed by rivers.

• U-shaped valleys are formed by earthquakes, while V-shaped valleys are formed by tectonic plate movement.

What are some examples of U-shaped valleys around the world?

• Mount Everest in Nepal; Mount Kilimanjaro in Tanzania; and Mount Fuji in Japan

• Grand Canyon in Arizona, USA; Victoria Falls in Zambia; and Great Barrier Reef in Australia

• Sahara Desert in Africa; Gobi Desert in China; and Atacama Desert in Chile

• Yosemite Valley in California, USA; Lauterbrunnen Valley in Switzerland; and Khumbu Valley in Nepal are some examples of U-shaped valleys around the world.

What impact do U-shaped valleys have on the surrounding landscape?

• They create smooth and gentle landscapes

• They can create dramatic and picturesque landscapes with steep, rugged sides and flat valley bottoms.

• They cause the surrounding landscape to become more hilly

• They have no impact on the surrounding landscape

What are the different stages of U-shaped valley formation?

• melting, freezing, and sublimation

• erosion, transportation, and deposition

• weathering, compaction, and cementation

• evaporation, condensation, and precipitation

How do U-shaped valleys contribute to the study of past glaciation?

• They provide evidence of past glaciation

• They are only found in tropical regions

• They are formed by volcanic activity

• They have no relation to past glaciation

What are the environmental implications of U-shaped valleys?

• Increase in biodiversity

• No impact on local ecosystems

• Glacial erosion, alteration of water flow, and impact on local ecosystems.

• Decrease in water flow