Question 1

Which of the following is true about levees?

Accepted Answer

A)  they are a reliable way to protect an area from flooding 
B)  to be called a levee, a feature needs to be at least partly constructed by humans 
C)  a levee can trap water on the floodplain after the flood has subsided 
D)  none of these 
A)  they are a reliable way to protect an area from flooding 
B)  to be called a levee, a feature needs to be at least partly constructed by humans 
C)  a levee can trap water on the floodplain after the flood has subsided 
D)  none of these

Question 2

The term hundred-year flood signifies:

Accepted Answer

A)  the size of a flood that is predicted to have a 1 in 100 probability of occurring in a given year 
B)  the size of a flood that is predicted to occur every year for 100 years continuously 
C)  a general term for a very large flooding event 
A)  the size of a flood that is predicted to have a 1 in 100 probability of occurring in a given year 
B)  the size of a flood that is predicted to occur every year for 100 years continuously 
C)  a general term for a very large flooding event

Question 3

Small, branching channels that carry water away from the main river channel and distribute it over the surface of the delta are known as:

Accepted Answer

A)  distributaries 
B)  meanders 
C)  braided 
A)  distributaries 
B)  meanders 
C)  braided

Question 4

Which of the following features can be formed by deposition along a low-gradient stream?

Accepted Answer

A)  point bar 
B)  oxbow lake 
C)  cutbank 
D)  none of these 
A)  point bar 
B)  oxbow lake 
C)  cutbank 
D)  none of these

Question 5

Which of the following is true about the 1993 upper Mississippi River flood and 1976 Thompson River flood?

Accepted Answer

A)  both floods lasted approximately the same amount of time 
B)  both floods resulted from similar-sized storms 
C)  in both floods, most damage occurred on a broad floodplain adjacent to the river 
D)  none of these 
A)  both floods lasted approximately the same amount of time 
B)  both floods resulted from similar-sized storms 
C)  in both floods, most damage occurred on a broad floodplain adjacent to the river 
D)  none of these

Question 6

Which of the following is the correct relationship between stream velocity and sediment load?

Accepted Answer

A)  As velocity increases, so does the stream's capacity to carry a larger load. 
B)  As velocity increases, the amount of sediment carried by the stream decreases. 
C)  There is no definite relationship between velocity and sediment load. 
A)  As velocity increases, so does the stream's capacity to carry a larger load. 
B)  As velocity increases, the amount of sediment carried by the stream decreases. 
C)  There is no definite relationship between velocity and sediment load.

Question 7

What could cause a canyon to be deeper upstream than downstream?

Accepted Answer

A)  the area upstream could be uplifted more than areas downstream 
B)  the area upstream is higher above base level and so results in deep erosion 
C)  a steeper gradient allows more erosion upstream 
D)  all of these 
A)  the area upstream could be uplifted more than areas downstream 
B)  the area upstream is higher above base level and so results in deep erosion 
C)  a steeper gradient allows more erosion upstream 
D)  all of these

Question 8

Feature A, formed where the Nile River encounters the Mediterranean Sea, is:

Accepted Answer

A)  a landslide 
B)  a series of waterfalls 
C)  a delta 
D)  all of these 
A)  a landslide 
B)  a series of waterfalls 
C)  a delta 
D)  all of these

Question 9

A depositional feature that has been deposited on the inside of a curve because of lower velocity is known as a:

Accepted Answer

A)  point bar 
B)  midchannel bar 
C)  meander cutoff 
A)  point bar 
B)  midchannel bar 
C)  meander cutoff

Question 10

What is a floodplain?

Accepted Answer

A)  A broad strip of land built up by sedimentation on either side of a stream channel. Covered with water during a flood. 
B)  A body of sediment deposited at the mouth of a stream when the stream's velocity decreases. 
C)  A ridge of sediment, usually sand or gravel, deposited in the middle or along the banks of a stream. 
D)  Step-like landforms found above a stream. 
A)  A broad strip of land built up by sedimentation on either side of a stream channel. Covered with water during a flood. 
B)  A body of sediment deposited at the mouth of a stream when the stream's velocity decreases. 
C)  A ridge of sediment, usually sand or gravel, deposited in the middle or along the banks of a stream. 
D)  Step-like landforms found above a stream.

Question 11

When meander scars are filled with water, they are called:

Accepted Answer

A)  oxbow lakes 
B)  point bars 
C)  river terraces 
D)  floodplain 
E)  main channels 
A)  oxbow lakes 
B)  point bars 
C)  river terraces 
D)  floodplain 
E)  main channels

Question 12

Which of the following influences whether a flood occurs?

Accepted Answer

A)  the height of levees 
B)  the amount of discharge 
C)  urbanization replacing farms or natural land with buildings) 
D)  the width of the channel 
E)  all of these are influences 
A)  the height of levees 
B)  the amount of discharge 
C)  urbanization replacing farms or natural land with buildings) 
D)  the width of the channel 
E)  all of these are influences

Question 13

What is the mostly likely setting for this drainage pattern?

Accepted Answer

A)  the rocks have a relatively equal resistance to erosion 
B)  drainages have followed a series of fractures that branch off of one another 
C)  the area has folded or faulted rocks with different resistances to erosion 
D)  a volcano once existed here but has been partly eroded away 
A)  the rocks have a relatively equal resistance to erosion 
B)  drainages have followed a series of fractures that branch off of one another 
C)  the area has folded or faulted rocks with different resistances to erosion 
D)  a volcano once existed here but has been partly eroded away

Question 14

Which of the following statements about streams is NOT true?

Accepted Answer

A)  base level is the lowest elevation to which a stream can erode 
B)  a steep stream high above base level generally will be eroding its channel 
C)  some streams can simply transport material instead of eroding or depositing material 
D)  streams typically do not respond to a change in climate 
A)  base level is the lowest elevation to which a stream can erode 
B)  a steep stream high above base level generally will be eroding its channel 
C)  some streams can simply transport material instead of eroding or depositing material 
D)  streams typically do not respond to a change in climate

Question 15

What three factors of a drainage basin influence the flow response to rainfall?

Accepted Answer

A)  slope 
B)  size 
C)  shape 
D)  all of these 
A)  slope 
B)  size 
C)  shape 
D)  all of these

Question 16

What could cause this stream to begin carving into the landscape?

Accepted Answer

A)  if base level is lowered, such as a drop in sea level 
B)  if the land is uplifted relative to the sea 
C)  if a change in climate weathers and weakens the rocks 
D)  all of these 
A)  if base level is lowered, such as a drop in sea level 
B)  if the land is uplifted relative to the sea 
C)  if a change in climate weathers and weakens the rocks 
D)  all of these

Question 17

These are formed when a steep drainage enters a broad valley and the sediments and debris are deposited.

Accepted Answer

A)  alluvial fans 
B)  lakes 
C)  waterfalls 
D)  rapids 
A)  alluvial fans 
B)  lakes 
C)  waterfalls 
D)  rapids

Question 18

Which of the following is true about transport of sediment in a stream?

Accepted Answer

A)  Pebbles and cobbles are mostly transported by suspension. 
B)  Sediment that is deposited within a stream bed is unlikely to be transported again. 
C)  Sand can be transported in a series of bounces along the stream bed. 
D)  Slower current can carry larger clasts because the water is in contact with each clast for a longer time. 
E)  Sand grains are converted into salt by the process of saltation. 
A)  Pebbles and cobbles are mostly transported by suspension. 
B)  Sediment that is deposited within a stream bed is unlikely to be transported again. 
C)  Sand can be transported in a series of bounces along the stream bed. 
D)  Slower current can carry larger clasts because the water is in contact with each clast for a longer time. 
E)  Sand grains are converted into salt by the process of saltation.

Question 19

Which of the following features is NOT formed by stream deposition?

Accepted Answer

A)  broad plains next to a braided stream 
B)  a floodplain 
C)  a delta 
D)  a waterfall 
A)  broad plains next to a braided stream 
B)  a floodplain 
C)  a delta 
D)  a waterfall

Question 20

What units of measure would most likely be represented by letters A-E on the bottom of the accompanying hydrograph?

Accepted Answer

A)  meters 
B)  hours 
C)  kilograms 
D)  miles 
A)  meters 
B)  hours 
C)  kilograms 
D)  miles

Which of the following is true about levees?

The term hundred-year flood signifies:

Small, branching channels that carry water away from the main river channel and distribute it over the surface of the delta are known as:

Which of the following features can be formed by deposition along a low-gradient stream?

Which of the following is true about the 1993 upper Mississippi River flood and 1976 Thompson River flood?

Which of the following is the correct relationship between stream velocity and sediment load?

What could cause a canyon to be deeper upstream than downstream?

Feature A, formed where the Nile River encounters the Mediterranean Sea, is:

A depositional feature that has been deposited on the inside of a curve because of lower velocity is known as a:

What is a floodplain?

When meander scars are filled with water, they are called:

Which of the following influences whether a flood occurs?

What is the mostly likely setting for this drainage pattern?

Which of the following statements about streams is NOT true?

What three factors of a drainage basin influence the flow response to rainfall?

What could cause this stream to begin carving into the landscape?

These are formed when a steep drainage enters a broad valley and the sediments and debris are deposited.

Which of the following is true about transport of sediment in a stream?

Which of the following features is NOT formed by stream deposition?

What units of measure would most likely be represented by letters A-E on the bottom of the accompanying hydrograph?

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Exam 16: Streams and Flooding

Which of the following is true about levees?

The term hundred-year flood signifies:

Small, branching channels that carry water away from the main river channel and distribute it over the surface of the delta are known as:

Which of the following features can be formed by deposition along a low-gradient stream?

Which of the following is true about the 1993 upper Mississippi River flood and 1976 Thompson River flood?

Which of the following is the correct relationship between stream velocity and sediment load?

What could cause a canyon to be deeper upstream than downstream?

Feature A, formed where the Nile River encounters the Mediterranean Sea, is:

A depositional feature that has been deposited on the inside of a curve because of lower velocity is known as a:

What is a floodplain?

When meander scars are filled with water, they are called:

Which of the following influences whether a flood occurs?

What is the mostly likely setting for this drainage pattern?

Which of the following statements about streams is NOT true?

What three factors of a drainage basin influence the flow response to rainfall?

What could cause this stream to begin carving into the landscape?

These are formed when a steep drainage enters a broad valley and the sediments and debris are deposited.

Which of the following is true about transport of sediment in a stream?

Which of the following features is NOT formed by stream deposition?

What units of measure would most likely be represented by letters A-E on the bottom of the accompanying hydrograph?

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