Question 1

What is NOT true about how terraces form?

Accepted Answer

A)  most terraces were once part of a floodplain 
B)  according to superposition, the lowest terrace is the oldest 
C)  terraces develop along a river that is incising eroding) downward 
D)  a river can have more than one level of terraces 
A)  most terraces were once part of a floodplain 
B)  according to superposition, the lowest terrace is the oldest 
C)  terraces develop along a river that is incising eroding) downward 
D)  a river can have more than one level of terraces

Question 2

Sinuosity refers to:

Accepted Answer

A)  the amount that a river or stream channel curves in a given length 
B)  the profile of a river or stream in a given length 
C)  the steepness of a river or stream in a given length 
D)  the amount of water passing a point in a river or stream in a given length 
A)  the amount that a river or stream channel curves in a given length 
B)  the profile of a river or stream in a given length 
C)  the steepness of a river or stream in a given length 
D)  the amount of water passing a point in a river or stream in a given length

Question 3

What is the type of stream transportation by a series of short leaps or bounces off the bottom of the streambed?

Accepted Answer

A)  saltation 
B)  traction 
C)  abrasion 
D)  suspended load 
A)  saltation 
B)  traction 
C)  abrasion 
D)  suspended load

Question 4

What could cause this stream to deposit sediment?

Accepted Answer

A)  a rise in base level, such as a rise in sea level 
B)  subsidence of the land, producing slopes that are less steep 
C)  both a rise in base level or subsidence of the land 
D)  none of these 
A)  a rise in base level, such as a rise in sea level 
B)  subsidence of the land, producing slopes that are less steep 
C)  both a rise in base level or subsidence of the land 
D)  none of these

Question 5

What type of stream is shown in this photograph?

Accepted Answer

A)  meandering stream 
B)  braided stream 
C)  a stream whose main channel has high sinuosity 
D)  an esker 
A)  meandering stream 
B)  braided stream 
C)  a stream whose main channel has high sinuosity 
D)  an esker

Question 6

In which location would a geologist look for a stream confined to a single channel?

Accepted Answer

A)  gentle plains 
B)  mountain slopes 
C)  mountain tops 
A)  gentle plains 
B)  mountain slopes 
C)  mountain tops

Question 7

Which of the following does NOT influence whether sediment is picked up by a stream?

Accepted Answer

A)  size and density of the sediment 
B)  turbulence of the moving water 
C)  location of the sediment in the stream 
D)  whether the stream flows north-south or east-west 
A)  size and density of the sediment 
B)  turbulence of the moving water 
C)  location of the sediment in the stream 
D)  whether the stream flows north-south or east-west

Question 8

This figure shows four numbered river terraces, with 1 being the highest and 4 being the lowest. Which is the youngest terrace?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 9

Which of the features on this aerial photograph is a point bar?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
A)  A 
B)  B 
C)  C 
D)  D

Question 10

At which site along this stream would a cutbank form?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
A)  A 
B)  B 
C)  C 
D)  D

Question 11

Where would be the relatively safest place to build a bridge across the stream in the accompanying figure?

Accepted Answer

A)  between points 1 and 2 
B)  between points 3 and 4 
C)  between points 5 and 6 
D)  between points 7 and 8 
A)  between points 1 and 2 
B)  between points 3 and 4 
C)  between points 5 and 6 
D)  between points 7 and 8

Question 12

Formation of entrenched meanders can result from a:

Accepted Answer

A)  low-gradient river followed by downcutting 
B)  braided river that later exceeds its capacity to carry sediment 
C)  braided river followed by regional uplift 
D)  steep-gradient mountain stream following by an increase in precipitation 
A)  low-gradient river followed by downcutting 
B)  braided river that later exceeds its capacity to carry sediment 
C)  braided river followed by regional uplift 
D)  steep-gradient mountain stream following by an increase in precipitation

Question 13

Which of the following is NOT a characteristic of a braided stream?

Accepted Answer

A)  multiple channels 
B)  constant flow 
C)  abundant sediments 
A)  multiple channels 
B)  constant flow 
C)  abundant sediments

Question 14

What is a reasonable interpretation for the flow event recorded by this hydrograph?

Accepted Answer

A)  there were two pulses of runoff because there were two storms 
B)  the drainage basin has several distinct parts 
C)  one pulse could be due to snowmelt and the other to rain 
D)  all of these 
A)  there were two pulses of runoff because there were two storms 
B)  the drainage basin has several distinct parts 
C)  one pulse could be due to snowmelt and the other to rain 
D)  all of these

Question 15

If a river originates 200 meters above sea level and travels 100 kilometers to the ocean, what is the average gradient in meters per kilometer?

Accepted Answer

A)  0.2 meters per kilometer 
B)  0.5 meters per kilometer 
C)  2 meters per kilometer 
D)  5 meters per kilometer 
E)  none of these 
A)  0.2 meters per kilometer 
B)  0.5 meters per kilometer 
C)  2 meters per kilometer 
D)  5 meters per kilometer 
E)  none of these

Question 16

At which site along this stream would a point bar form?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
A)  A 
B)  B 
C)  C 
D)  D

Question 17

Potholes or bowl-shaped pits are formed when flowing water and sediments swirl in small:

Accepted Answer

A)  depressions 
B)  holes 
C)  pits 
D)  all of these 
A)  depressions 
B)  holes 
C)  pits 
D)  all of these

Question 18

The end of the river is the:

Accepted Answer

A)  mouth 
B)  headwater 
C)  tributary 
A)  mouth 
B)  headwater 
C)  tributary

Question 19

What is a drainage divide?

Accepted Answer

A)  A ridge or strip of high ground separating one drainage basin from another 
B)  The area where a stream flows into a lake or ocean 
C)  The total area drained by a stream and its tributaries 
D)  The arrangement of a stream and its tributaries 
A)  A ridge or strip of high ground separating one drainage basin from another 
B)  The area where a stream flows into a lake or ocean 
C)  The total area drained by a stream and its tributaries 
D)  The arrangement of a stream and its tributaries

Question 20

The area of origin of a river is the:

Accepted Answer

A)  headwater 
B)  mouth 
C)  tributary 
A)  headwater 
B)  mouth 
C)  tributary

What is NOT true about how terraces form?

Sinuosity refers to:

What is the type of stream transportation by a series of short leaps or bounces off the bottom of the streambed?

What could cause this stream to deposit sediment?

What type of stream is shown in this photograph?

In which location would a geologist look for a stream confined to a single channel?

Which of the following does NOT influence whether sediment is picked up by a stream?

This figure shows four numbered river terraces, with 1 being the highest and 4 being the lowest. Which is the youngest terrace?

Which of the features on this aerial photograph is a point bar?

At which site along this stream would a cutbank form?

Where would be the relatively safest place to build a bridge across the stream in the accompanying figure?

Formation of entrenched meanders can result from a:

Which of the following is NOT a characteristic of a braided stream?

What is a reasonable interpretation for the flow event recorded by this hydrograph?

If a river originates 200 meters above sea level and travels 100 kilometers to the ocean, what is the average gradient in meters per kilometer?

At which site along this stream would a point bar form?

Potholes or bowl-shaped pits are formed when flowing water and sediments swirl in small:

The end of the river is the:

What is a drainage divide?

The area of origin of a river is the:

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Exam 16: Streams and Flooding

What is NOT true about how terraces form?

Sinuosity refers to:

What is the type of stream transportation by a series of short leaps or bounces off the bottom of the streambed?

What could cause this stream to deposit sediment?

What type of stream is shown in this photograph?

In which location would a geologist look for a stream confined to a single channel?

Which of the following does NOT influence whether sediment is picked up by a stream?

This figure shows four numbered river terraces, with 1 being the highest and 4 being the lowest. Which is the youngest terrace?

Which of the features on this aerial photograph is a point bar?

At which site along this stream would a cutbank form?

Where would be the relatively safest place to build a bridge across the stream in the accompanying figure?

Formation of entrenched meanders can result from a:

Which of the following is NOT a characteristic of a braided stream?

What is a reasonable interpretation for the flow event recorded by this hydrograph?

If a river originates 200 meters above sea level and travels 100 kilometers to the ocean, what is the average gradient in meters per kilometer?

At which site along this stream would a point bar form?

Potholes or bowl-shaped pits are formed when flowing water and sediments swirl in small:

The end of the river is the:

What is a drainage divide?

The area of origin of a river is the:

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Volcanoes and Volcanic Hazards

Sedimentary Environments

Deformation and Metamorphism

Geologic Time

Seafloor and Continental Margins

Mountains, Basins, and Continents

Earthquakes and Earths Interior

Climate and Weathering

Glaciers, Shorelines, and Changing Sea Levels

Weathering, Soil, and Unstable Slopes

Water Resources

Energy and Mineral Resources

Geology of the Solar System

Filters