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- 1. Multiple Choice
With a steeper slope, we would expect to see...
less erosion
more erosion
the same amount of erosion
no erosion at all
- 2. Multiple ChoiceWhich of the following statements is not true?Water causes more erosion on slopes without plantsWater flows from higher to lower groundFaster water erodes more sedimentAs water slows, smaller particles are deposited first
- 3. Multiple ChoiceWhen a stream or river starts to slow down, it:Picks up more sedimentErodes more rapidlyDeposits fine sediments, but continues carrying larger rocksDeposits larger rocks, but continues carrying finer sediment
- 4. Multiple ChoiceThe steeper the slope, the ________ the stream.SlowerBroaderFasterCurvier
- 5. Multiple Choice
At which location is the greatest amount of sediment most likely being deposited?ABCD - 6. Multiple ChoiceThe diagram below shows a section of a meander in a stream. The arrow shows the direction of stream flow. The stream bank on the outside of this meander is steeper than than the stream bank on the inside of this meander because the water on the outside of the meander is movingSlower, causing depositionFaster, causing depositionSlower, causing erosionFaster, causing erosion
- 7. Multiple Choice
What is erosion?
The movement of sediment
The breaking of sediment
The dropping of sediment
- 8. Multiple Choice
If the velocity of a stream decreases from 50 centimeters per second to 5 centimeters per second, which sediments will deposit?
A) small cobbles and large pebbles
B) small pebbles and large sand
C) small sand and large silt
D) small silt and large clay
- 9. Multiple Choice
Quartz particles of varying sizes are dropped at the same time into deep, calm water. Which cross section best represents the settling pattern of these particles?
A
B
C
D
- 10. Multiple Choice
Clay, silt, and sand are added to a jar of water. The jar is shaken and then allowed to stand quietly for a number of hours. The result of this demonstration could be best used as a model to show that
A) particles with the lowest density settle the fastest
B) particles with the largest size/diameter settle the fastest
C) water is denser than clay, silt, and sand
D) the bottom layer of a series of sediments is the youngest
- 11. Multiple Choice
What is the largest sediment that a stream could transport that has a velocity of 110 cm/s?
Pebbles
Sand
Silt
Clay
- 12. Multiple Choice
Which particles could be transported by a stream moving at a velocity of 5 cm/s?
Pebbles, Sand, Silt, Clay
Sand, Silt, Clay
Silt, Clay
Clay
- 13. Multiple Choice
What is the approximate minimum stream velocity required to transport the smallest pebble?
1.1 cm/s
5.0 cm/s
11.0 cm/s
110.0 cm/s
- 14. Multiple Choice
The stream bank on the outside of the meander has a steeper streambank than the inside, because the water on the outside of a meander is moving
faster, causing more erosion
faster, causing more deposition
slower, causing more erosion
slower, causing more deposition
- 15. Multiple Choice
The greatest stream velocity are found closest to points
A and B
B and C
C and A
D and A
- 16. Multiple Choice
The diagram shows a stream flowing past
points X and Y. If the velocity of the stream at point X is 100 centimeters per second, which statement best describes the sediments being transported past these points?
At points X and Y, only clay is being transported.
At points X and Y, only sand, silt, and clay are
being transported.
Some pebbles being transported at point Y are bigger than those being transported at point X.
Some pebbles and cobbles are being transported
at points X and Y, but not sand, silt, or clay.
- 17. Multiple Choice
The diagrams show a meandering stream
flowing across nearly flat topography and over
loose sediments. If arrow length represents stream velocity, which diagram best shows the relative stream velocities in this section of the stream?
1
2
3
4
- 18. Multiple Choice
When the velocity of a stream suddenly decreases, the sediment being transported undergoes an increase in
particle density
erosion
deposition
mass movement
- 19. Multiple Choice
What is the minimum rate of flow at which a stream of water can maintain the transportation of pebbles 1.0 centimeter in diameter?
50 cm/sec
100 cm/sec
150 cm/sec
200 cm/sec
- 20. Multiple Choice
Which set of conditions would produce the most
runoff of precipitation?
gentle slope and permeable surface
gentle slope and impermeable surface
steep slope and permeable surface
steep slope and impermeable surface
- 21. Multiple ChoiceWhich rock particles will remain suspended in water for the longest time?pebblessiltclaysand
- 22. Multiple ChoiceAccording to the ESRT, what must be the size of a boulder?greater than 25.6 cm in diameter0.2 to 6.4 cm in diameterless than 0.2 cm in diameter6.4 to 25.6 cm in diameter
- 23. Multiple ChoiceWhich kind of sediment would probably be deposited farthest out in the lake?siltsandclaypebbles
- 24. Multiple Choice
What kind of sorting is this?
Vertical
Horizontal
Cross-bedding
Unsorted
- 25. Multiple Choice
The three areas separated by highland divides are called
Tributaries
meanders
watersheds
floodplains
- Answer choicesTagsAnswer choicesTags