Erosion Study Guide

Erosion Study Guide

Multiple Choice

Identify the choice that best completes the statement or answers the question.

____ 1. Which landform is NOT the result of weathering and erosion?

a. / mountains / c. / plateaus
b. / wetlands / d. / buttes

____ 2. All of these farming methods conserve soil EXCEPT

a. / furrowing. / c. / contour plowing.
b. / crop rotation. / d. / terracing.

____ 3. In which of the following erosion processes is gravity NOT a major factor?

a. / creep / c. / dust storms
b. / mudflows / d. / slump

____ 4. What two processes are all landforms subject to?

a. / uplift and erosion / c. / slump and erosion
b. / gravity and exfoliation / d. / exfoliation and friction

____ 5. Areas with low, rolling hills formed from mountains are

a. / plateaus. / c. / plains.
b. / mountains. / d. / peneplains.

____ 6. A soil conservation method of farming that uses alternating bands of crops is called

a. / contour plowing. / c. / terracing.
b. / strip-cropping. / d. / crop rotation.

____ 7. The movement of a large block of soil and rock downhill in one piece when it becomes unstable is called a

a. / slump. / c. / landslide.
b. / rockfall. / d. / creep

____ 8. When a river’s load and discharge increase,

a. / it slows down. / c. / its erosive power decreases.
b. / it becomes a sediment bar. / d. / its erosive power increases.

____ 9. What is a condition necessary for a river system to form?

a. / Flooding exceeds condensation.
b. / Precipitation exceeds evapotranspiration.
c. / Evapotranspiration exceeds precipitation.
d. / Condensation exceeds evaporation.

____ 10. What is a tributary?

a. / a stream that feeds another stream or lake
b. / a stream that dries out
c. / a lake that feeds into a stream
d. / the area drained by a river system

____ 11. A divide

a. / separates floodplains. / c. / separates watersheds.
b. / separates continents. / d. / separates braided streams.

____ 12. About 90% of the water used by cities and industry is returned to rivers or to the oceans as

a. / runoff. / c. / saltwater.
b. / wastewater. / d. / precipitation.

____ 13. River channels lengthen and branch out at their upper ends in what process?

a. / channel erosion / c. / headward expansion
b. / headward erosion / d. / headlong expansion

____ 14. What is the name for the land that is drained by a river system?

a. / watershed / c. / floodplain
b. / water table / d. / bedrock

____ 15. In the process of stream piracy, a stream in a watershed with a

a. / lower rate of erosion captures a stream from another watershed, and the captured stream then drains into its old watershed.
b. / higher rate of erosion captures a stream from another watershed, and the captured stream then drains into its new watershed.
c. / higher rate of erosion captures a stream from another watershed, and the captured stream then drains into its old watershed.
d. / lower rate of erosion captures a stream from another watershed, and the captured stream then drains into its new watershed.

____ 16. A lake basin can form when a continental glacier leaves depressions

a. / in the ice mass. / c. / in eskers.
b. / in roches moutonnées. / d. / in bedrock.

____ 17. Glacial lakes can form in the uneven surface of

a. / ground moraines. / c. / mountains.
b. / the continental glacier. / d. / valleys.

____ 18. A deep, bowl-shaped depression formed by glacial erosion is called a(n)

a. / ice pack. / c. / cirque.
b. / arête. / d. / kettle.

____ 19. Finger lakes form where

a. / erosion causes deep holes. / c. / glaciers melt by evaporation.
b. / moraines block existing streams. / d. / deposition overcomes erosion.

____ 20. Which of the following features are all produced by glacial erosion?

a. / horn, cirque, and kettle / c. / cirque, arête, and horn
b. / cirque, moraine, and till / d. / till, horn, and moraine

____ 21. When a glacier deposits till in the form of a ridge,

a. / a cirque forms. / c. / a crevasse forms.
b. / a glacial lake forms. / d. / a moraine forms.