Erosion Quiz

What is erosion?

• When soil or rocks are carried somewhere else by wind, water, or gravity

• When soil or rocks are carried somewhere else by fire

• When soil or rocks are carried somewhere else by sunlight

• When soil or rocks are carried somewhere else by animals

How do water and gravity affect soil erosion?

• Water has no effect on soil erosion and gravity can force soil to move down away from its original place

• Water can carry sediment elsewhere and gravity can force soil to move up towards its original place

• Water can carry sediment elsewhere and gravity has no effect on soil erosion

• Water can carry sediment elsewhere and gravity can force soil to move down away from its original place

What is a sand dune?

• A mound or hill of sand built up by the action of water

• A mound or hill of sand built up by the action of fire

• A mound or hill of sand built up by the action of wind

• A mound or hill of sand built up by the action of animals

What causes soil erosion when heavy rainfall occurs?

• Soil moves horizontally across the ground

• Soil remains unaffected by heavy rainfall

• Soil moves up a steep slope

• Soil falls or slides down a steep slope

What is the role of gravity in erosion?

• Gravity pulls all things down to the surface, causing sediments to move

• Gravity pushes all things up from the surface, causing sediments to move

• Gravity pulls all things up from the surface, causing sediments to move

• Gravity has no effect on erosion

What causes the walls of the Grand Canyon to be carved slowly?

• Moving water

• Moving fire

• Moving wind

• Moving animals

Weathering and erosion cause changes to the face of the Earth.

• True

• False