Unit 2: Earth's Surface Test Review

Which natural event would likely lead to higher rates of erosion in a stream?

• A storm that increases the stream's discharge
• An earthquake that decreases the stream's gradient
• A sunny day that has no effect on the stream's load
• A slight breeze that carries pollen over the stream

Alluvial fans are formed when:

• Streams with low load suddenly spread out
• Streams with a high gradient empty onto flat ground
• Streams have very low discharge and dry up
• Streams empty into a lake or ocean

After wind picks up sand from the gently sloping side of a dune, it carries the sand over to the steeper side and sets it down.  The process of setting the sand down is called:

• erosion
• deposition
• discharge
• weathering

Which of the following is true about glaciers?

• Continental glaciers currently cover most of North America
• Glaciers form when it is very cold and more snow falls than melts
• Alpine glaciers may create flattened landscapes
• We currently have many glaciers because we are in an ice age

Which of the following is a type of mass movement created by wind erosion and deposition?

• dune
• loess
• glacier
• mudslide

Stream X causes more erosion than Stream Y.  Which of the following is NOT a reason for this difference?

• Stream Y flows slower than Stream X
• Stream X has a lower gradient than Stream Y
• Stream Y carries smaller particles than Stream X
• Stream X has a higher discharge than Stream Y

Which of the following does happen when a stream's velocity increases (the stream speeds up)?

• The stream cannot pick up large particles
• The stream has more energy for erosion
• The stream deposits its load
• The stream's discharge rate drops

Continental glaciers tend to form what kind of landscape?

• Rugged
• Hilly
• Flat
• Uneven

Which area is best represented by letter C on the map?

• a valley near a mountain
• a peak
• a slope on the side of a mountain
• a depression

Which of the following is a purpose of a topographic map?

• To show human-made features and the heights of these features 
• To show the shape of Earth's surface with different elevations
• To show a picture of the Earth taken from an aircraft
• To show roads, cities, and political features