FREE AND STUDY GAMES ABOUT QUIZ 9 EXAM

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FREE AND STUDY GAMES ABOUT QUIZ 9 EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -40 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Which term best describes an accumulation of angular rock fragments at the base of a steep, bedrock slope or cliff?

Answer:

talus slope Question 2: Solifluction is an important mass wasting process in areas of permafrost.

Answer:

True Question 3: Which one of the following factors does NOT influence stream velocity?

Answer:

discharge

Question 4: A natural levee is ________.

• an erosional feature
• a depositional feature
• essentially parallel to its stream channel

Answer:

both B and C 1.a depositional feature 2.essentially parallel to its stream channel

Question 5: Which of the following is NOT part of the water cycle?

Answer:

calcium carbonate dissolving in soil water and groundwater

Question 6: The world's largest river in terms of discharge is the ________.

Answer:

Amazon Question 7: A triggering mechanism, such as heavy rains or an earthquake, are necessary for mass wasting to occur.

Answer:

False Question 8: All of the following are possible indicators that creep is occurring except for

________.

Answer:

an extremely thick soil profile Question 9: Repeated freezing and thawing can be important in soil creep movements.

Answer:

True Question 10: All of the following are factors affecting mass wasting except for ________.

Answer:

geologic age Question 11: The steepest, stable, slope angle possible in unconsolidated, granular materials like sand and gravel is called the angle of retention.

Answer:

False

Question 12: A scarp is the exposed portion of the rupture surface beneath a slump block.

Answer:

True Question 13: Earthflows and slumps generally involve movement of unconsolidated or weakly consolidated soil and regolith.

Answer:

True

Question 14: Solifluction occurs during the warmer summer months.

Answer:

True Question 15: Consider a weathered rock or soil particle lying on a slope. How will the gravitational force pulling the particle downward along the land surface vary with the inclination of the slope?

Answer:

It will decrease as the slope angle is lessened Question 16: At the head of a delta, the major channel splits into smaller channels that follow different paths to the sea. These smaller channels are known as ________.

Answer:

distributaries Question 17: How do the strength and cohesion of clay-rich regolith or soil change with the addition of water?

Answer:

Water lowers the strength and cohesion Question 18: Which one of the following operates primarily in areas of permafrost?

Answer:

solifluction

Question 19: Of the following, which one would most likely be triggered by an earthquake?

Answer:

rock avalanche

Question 20: Which statement best describes slumping, a mass wasting process?

Answer:

a block or blocks of unconsolidated regolith slide downhill along a curved slip surface

Question 21: ________ make up the suspended loads of most rivers and streams.

Answer:

Silt and clay-sized, detrital grains Question 22: As an erosional process, how is mass wasting unique from wind, water, and ice?

Answer:

Mass wasting does not require a transporting medium Question 23: Which of the following must result in a lower base level for rivers and streams?

Answer:

sea level falls; land rises

Question 24: ________ involves movement on a zone of compressed air.

Answer:

A rock avalanche Question 25: Slump describes the very slow, downhill movement of soil and regolith

Answer:

False Question 26: A natural, meandering, river channel is modified into a more or less straight and smooth, canal-like channel. Which of the following statements is correct?

Answer:

The natural channel had a lower gradient and higher friction than the straight channel