Geography Quiz: Weathering and Erosion

What is chemical weathering?

• The process of rocks and minerals being heated and melted by volcanic activity.

• The process of rocks and minerals being transformed into sedimentary rock.

• The process by which rocks and minerals are broken down by chemical reactions.

• The process of rocks and minerals being physically worn down by wind and water.

Give an example of mechanical weathering.

• Chemical weathering

• Volcanic eruption

• Frost wedging

• Tectonic plate movement

How does erosion by water contribute to shaping the landscape?

• Water erosion has no impact on shaping the landscape.

• Water erosion shapes the landscape by building up the land and preventing sediment from moving.

• Water erosion shapes the landscape by wearing away the land and carrying sediment to new locations.

• Water erosion only affects the landscape in small, localized areas.

Explain how wind erosion affects landforms.

• Wind erosion creates mountains and valleys

• Wind erosion can create landforms such as sand dunes, ventifacts, and yardangs by moving and depositing sand and other particles.

• Wind erosion causes the formation of glaciers

• Wind erosion has no impact on landforms

What is freeze-thaw action and how does it impact the environment?

• Freeze-thaw action leads to the formation of deserts

• Freeze-thaw action causes global warming

• Freeze-thaw action has no impact on the environment

• Freeze-thaw action causes mechanical weathering and can lead to the formation of talus slopes and scree fields.

What are the main agents of chemical weathering?

• Rocks, sand, and soil

• Sunlight, helium, and methane

• Wind, nitrogen, and sulfur

• Water, oxygen, carbon dioxide, and acids

Describe the process of mechanical weathering.

• Changing the color of rocks

• Breaking down rocks into smaller pieces without changing their chemical composition.

• Causing rocks to grow in size

• Melting rocks into liquid form

Discuss the role of erosion by water in creating river valleys.

• Water erosion has no impact on creating river valleys

• River valleys are formed by wind erosion

• Water erosion helps in creating river valleys by carrying away sediment and carving out the land.

• River valleys are formed by volcanic activity

How does wind erosion lead to the formation of sand dunes?

• Wind erosion causes sand dunes to disappear completely

• Sand dunes are formed by volcanic activity

• Wind erosion picks up loose sand particles and carries them to new locations, where they accumulate and form sand dunes.

• Sand dunes are created by the movement of glaciers

Explain the impact of freeze-thaw action on rock formations.

• It weakens the rock and can lead to the formation of cracks and breakdown of the rock.

• It causes the rock to become harder and more resistant to erosion

• It has no impact on the rock formations

• It strengthens the rock and prevents any changes in the formation