Chapter 8 Review: Erosion and Deposition

Which type of processes reshape Earth’s surface?

• constructive
• destructive
• both a and b
• neither a nor b

How are ice and plant roots weathering agents?

• They dissolve minerals in rocks.
• They grind and polish rock by moving particles against it.
• They expand within cracks in rock to break the rock apart.
• They are not weathering agents.

Where do erosion and deposition occur in a river?

• Erosion occurs as the moving river picks up soil and moves it downstream. Deposition occurs when the river currents slow as it enters the larger body of water and drops the soil.
• Deposition occurs as the moving river picks up soil and moves it downstream. Erosion occurs when the river currents slow as it enters the larger body of water and drops the soil.
• The river is eroding the land. There is no deposition.
• The delta forming at the mouth of the river is from deposition. There is no erosion.

A(n) ____ forms when river waters empty from a mountain valley out onto a flat open plain.

• alluvial fan
• meander
• delta
• drainage basin

How is wind a weathering agent?

• It dissolves minerals in rocks.
• It grinds and polishes rock by moving particles against it.
• It expands within cracks in rock to break the rock apart.
• It is not a weathering agent.

Which is NOT a factor in the speed of erosion?

• speed of the water in a stream
• time of day
• strength of the wind
• material of the rock

What do hoodoos, sea bridges and caves have in common?

• They are formed when erosion removes less resistant rocks and leaves behind parts that are more resistant.
• They are formed when deposition removes less resistant rocks and leaves behind parts that are more resistant.
• They are formed by deposition.
• They are formed when erosion removes more resistant rocks and leaves behind parts that are less resistant.

You see a stream that is rushing down a slope, and notice rolling rapids. Which type of stream is it?

• young stream
• old stream
• mature stream
• elderly stream

Running through the farmer’s flat field is a slow moving stream with large meanders. There is more deposition on the inside of the curves than the outside. How would you classify this stream?

• starter stream
• mature stream
• young stream
• old stream

A stream is running over gentle slopes. The sides of the stream are eroding more quickly than the bottom, and the stream is developing curves. What sort of stream is this?

• young stream
• old stream
• mature stream
• elderly stream