Weathering, Erosion, and Deposition

What is the process that breaks down rock and other substances over time?

• weathering

• erosion

• deposition

• mass movement

The process of physically breaking down rock into smaller pieces

• mechanical weathering

• chemical weathering

• erosion

• deposition

Which of the following does not cause mechanical weathering?

• freezing and thawing

• abrasion

• acid rain

• actions of animals

What is chemical weathering?

• breaking down rock by changing its chemical composition

• moving weathered material from one location to another

• physically breaking down rock into smaller pieces

• the downhill movement of rock, soil, and other debris under the force of gravity

The process of moving weathered material or sediment from one location to another is ___________.

• erosion

• deposition

• mass movement

• weathering

The downhill movement of rock, soil, and other debris under the force of gravity

• erosion

• deposition

• mass movement

• weathering

Which of the following is a major cause of erosion?

• moving water

• wind

• ice

• all of the above

What two factors have the greatest impact on erosion by water?

• slope of the land AND

  flow rate of water

• slope of the land

  AND

  type of soil

• vegetation

  AND

  land use

• all of the above

The water that moves over Earth's surface after a rainfall

• slump

• creep

• runoff

• sediment

The weakest form of erosion

• water

• wind

• ice

• gravity