Question 1

When will the most runoff be generated: at the beginning of a series of storms or at the end?

Accepted Answer

At the end

Question 2

A dam is constructed on the Crymea River.Explain how this will affect the river and the work that the river performs both upstream as well as downstream.

Accepted Answer

A reservoir will form upstream, which will create a temporary base level for the upstream segment.This will result in a lower velocity and, by extension, deposition.Downstream, water is being released from the dam at a high velocity, which will increase erosion.

Question 3

In which part of a stream's course would one typically find bedrock channels?

Accepted Answer

A) Headwaters 
B) At confluences 
C) Mouth 
D) In a delta 
A) Headwaters 
B) At confluences 
C) Mouth 
D) In a delta A

Question 4

Define evapotranspiration.

Accepted Answer

The transfer of water from the

Question 5

During what periods would streams see the greatest erosion and transportation of sediment?

Accepted Answer

A) Floods 
B) Droughts 
C) When frozen 
D) When dammed 
A) Floods 
B) Droughts 
C) When frozen 
D) When dammed

Question 6

What kind of stream channel is visible here?

Accepted Answer

A) Laminar channel 
B) Braided channel 
C) Meandering channel 
D) Overflow channel 
A) Laminar channel 
B) Braided channel 
C) Meandering channel 
D) Overflow channel

Question 7

In the late spring and summer of 2012, the majority of the United States experienced a severe drought, which damaged crops and affected barge traffic on major rivers.How did the drought reduce barge traffic? How did the drought affect the factors that determine streamflow? What are three ways that rivers lost water to the drought? (Hint: Where did the water go?)

Accepted Answer

The drought affected barge traffic becau

Question 8

A(n)________ stream is a stream that is in equilibrium and is neither eroding or depositing material, but simply transporting it.

Accepted Answer

A) graded stream 
B) braided stream 
C) alluvial stream 
D) bedrock stream 
A) graded stream 
B) braided stream 
C) alluvial stream 
D) bedrock stream

Question 9

What is the name for the stream feature in this image?

Accepted Answer

A) Cutbank 
B) Oxbow lake 
C) Point bar 
D) Incised meander 
A) Cutbank 
B) Oxbow lake 
C) Point bar 
D) Incised meander

Question 10

How will channel velocity change along the longitudinal profile of a stream?

Accepted Answer

A) Velocity will remain constant for the entire length of the stream 
B) Velocity will start high and gradually decrease toward the mouth due to increasing discharge downstream 
C) Velocity will start low and gradually increase toward the mouth due to increasing discharge downstream 
A) Velocity will remain constant for the entire length of the stream 
B) Velocity will start high and gradually decrease toward the mouth due to increasing discharge downstream 
C) Velocity will start low and gradually increase toward the mouth due to increasing discharge downstream

Question 11

At approximately what velocity will a 0.1 mm sediment particle begin moving in the stream?

Accepted Answer

A) 5 cm/sec 
B) 1 cm/sec 
C) 0.6 cm/sec 
D) 0.001 cm/sec 
A) 5 cm/sec 
B) 1 cm/sec 
C) 0.6 cm/sec 
D) 0.001 cm/sec

Question 12

The hydrologic cycle is off-balance because more liquid is brought in via comets and meteorites each year.

Accepted Answer

A) True 
 B)False

Question 13

________ is the area at the headwaters of a stream where most of the sediment is derived.

Accepted Answer

A) Sediment Production 
B) Sediment Transport 
C) Sediment Deposition 
D) Sediment Load 
A) Sediment Production 
B) Sediment Transport 
C) Sediment Deposition 
D) Sediment Load

Question 14

Running water is the single most important erosional agent sculpting Earth's land surface.

Accepted Answer

A) True 
 B)False

Question 15

When Europeans moved into the region along the Lower Mississippi River around three hundred years ago, they often settled on the floodplains of the river and set up farms.Geologically, what aspect of the floodplain impacted their choice to settle there?

Accepted Answer

Because floods naturally reple

Question 16

How many subdeltas have been formed by the Mississippi River in the last 6,000 years?

Accepted Answer

A) 6 
B) 2 
C) 5 
D) 7 
A) 6 
B) 2 
C) 5 
D) 7

Question 17

What is the difference between a floodplain and a stream terrace?

Accepted Answer

A terrace is a forme

Question 18

Point bars are locations where erosion occurs whereas cutbanks are locations where deposition occurs.

Accepted Answer

A) True 
 B)False

Question 19

The Nile River in Africa is a stream.

Accepted Answer

A) True 
 B)False

Question 20

Using the information provided above, describe what changes will happen to the stream and its streamflow as the water moves from the head to the mouth.

Accepted Answer

A) The channel roughness and slope decrease while the discharge, channel size, and flow velocity increase 
B) The channel size increases, which forces the flow velocity and discharge to decrease 
C) The channel roughness and slope increases while the discharge, channel size, and flow velocity decrease 
D) As the flow and channel size increase, so, too do the slope and roughness 
A) The channel roughness and slope decrease while the discharge, channel size, and flow velocity increase 
B) The channel size increases, which forces the flow velocity and discharge to decrease 
C) The channel roughness and slope increases while the discharge, channel size, and flow velocity decrease 
D) As the flow and channel size increase, so, too do the slope and roughness

Exam 16: Running Water

When will the most runoff be generated: at the beginning of a series of storms or at the end?

A dam is constructed on the Crymea River.Explain how this will affect the river and the work that the river performs both upstream as well as downstream.

In which part of a stream's course would one typically find bedrock channels?

Define evapotranspiration.

During what periods would streams see the greatest erosion and transportation of sediment?

What kind of stream channel is visible here?

A(n)________ stream is a stream that is in equilibrium and is neither eroding or depositing material, but simply transporting it.

What is the name for the stream feature in this image?

How will channel velocity change along the longitudinal profile of a stream?

At approximately what velocity will a 0.1 mm sediment particle begin moving in the stream?

The hydrologic cycle is off-balance because more liquid is brought in via comets and meteorites each year.

________ is the area at the headwaters of a stream where most of the sediment is derived.

Running water is the single most important erosional agent sculpting Earth's land surface.

When Europeans moved into the region along the Lower Mississippi River around three hundred years ago, they often settled on the floodplains of the river and set up farms.Geologically, what aspect of the floodplain impacted their choice to settle there?

How many subdeltas have been formed by the Mississippi River in the last 6,000 years?

What is the difference between a floodplain and a stream terrace?

Point bars are locations where erosion occurs whereas cutbanks are locations where deposition occurs.

The Nile River in Africa is a stream.

Using the information provided above, describe what changes will happen to the stream and its streamflow as the water moves from the head to the mouth.

An Introduction to Geology

Plate Tectonics: a Scientific Revolution Unfolds

Matter and Minerals

Magma, Igneous Rocks, and Intrusive Activity

Volcanoes and Volcanic Hazards

Weathering and Soil

Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

Earthquakes

Earths Interior

Divergent Boundaries

Convergent Boundaries

Mass Wasting

Groundwater

Glaciers and Glaciation

Deserts and Winds

Shorelines

Global Climate Change

Earths Evolution Through Geologic Time

Energy and Mineral Resources

Touring Our Solar System

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