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- 1. Multiple Choice
Landslides, rockfalls, and creep are examples of erosion and deposition by which agent of erosion?
gravity
solar energy
oxidation
wind
- 2. Multiple Choice
Isabella went hiking with her family near a river valley. They noticed that they were walking on yellowish-gray sediment. Isabella pointed out that it was called loess and then correctly explained how it formed. Which could be Isabella's explanation?
Layers of rock were deposited on one another.
Layers of dust were deposited by wind and built up.
Layers of sediment were deposited by moving rivers.
Layers of ice were deposited by snow and turned to ice.
- 3. Multiple Choice
Loess is a very valuable resource. What characteristic of loess makes it so valuable?
Loess is rich in minerals.
Loess contains bits of rock.
Loess does not erode easily.
Loess is very difficult to find.
- 4. Multiple Choice
Which term best describes how weathering changes the Earth's surface?
builds up
creates
moves
wears down
- 5. Multiple Choice
Which arrow shows the direction in which the wind was blowing to form this sand dune?
Right to Left
Left to Right
- 6. Multiple Choice
In places where there is loose sediment and strong wind, the wind can pick up the sediment and carry it. When the wind slows, it deposits the sediment. Which type of sediment will be dropped first as the wind slows.
the biggest
the lightest
the smallest
the heaviest
- 7. Multiple Choice
The tallest sand dunes in North America are found in Great Sand Dunes National Park and Preserve in Colorado. These dunes were formed from the sand at the bottom of a dry lake bed. Which of the following agents is most likely responsible for the formation fo the sand dunes?
ice
wind
water
gravity
- 8. Multiple Choice
The landform in the picture can be found on every continent; they are even found in Africa. What conditions are necessary for this landform to form?
It must be below freezing and very dry.
It must be cold, and more snow must fall than melts.
It must be mild, and there must be lots of precipitation.
It must be below freezing, and more snow must melt than falls.
- 9. Multiple Choice
Landslides, rockfalls and mudslides are responsible for both erosion and deposition. What condition is most likely to trigger a mudslide?
ice
rain
wind
temperature
- 10. Multiple Choice
When glaciers retreat, they leave behind huge blocks of ice. When these ice blocks melt, they can form kettle lakes. Why is it important for sediment to build up around the ice blocks order for kettle lakes to form?
Without the sediment, the water in the lake would dry up.
Without sediment, the water would not stay contained.
Without the sediment, vegetation would not be able to grow.
Without sediment, the ice blocks would not warm enough to melt.
- 11. Multiple Choice
Which of the following is a type of mass movement caused by gravity?
dune
loess
glacier
mudslide
- 12. Multiple Choice
Landslides, rockfalls, and mudslides are responsible for both erosion and deposition. What force is mainly responsible for the erosion and deposition that happens in landslides, rockfalls and mudslides?
ice
wind
gravity
temperature
- 13. Multiple Choice
How would you describe the landscape made by alpine glaciers compared to the landscape made by continental glaciers?
Alpine glaciers form U-shaped valleys, and continental glaciers for V-shaped valleys.
Alpine glaciers form rugged landscapes, and continental glaciers for flat landscapes.
Alpine glaciers form smooth landscapes, and continental glaciers form hilly landscapes.
Alpine glaciers form flattened landscapes, and continental glaciers for uneven landscapes.
- 14. Multiple Choice
In places where there is loose sand and strong wind, the wind can pick up the sand and carry it. When the wind slows, it deposits the sand. Which of the following is formed as the wind slows?
dunes
glaciers
rockfalls
mudflows
- 15. Multiple Choice
Look at the features of the valley in the following picture. How was this valley formed?
A continental glacier retreated, pushing sediment to the side.
An alpine glacier flowed down through the valley, causing erosion.
An alpine glacier dragged huge blocks of ice that formed kettle lakes.
A continental glacier flowed through the valley, depositing glacial drift.
- 16. Multiple Choice
The rock material deposited by glaciers as they melt and retreat is called ___.
loess
cirque
glacial drift
horn
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