Question 1

When a river reaches a base level,its forward velocity rapidly decelerates as it enters a larger body of standing water.Which feature is formed?

Accepted Answer

A) An estuary. 
B) An alluvial terrace. 
C) A delta. 
D) A stream terrace. 
A) An estuary. 
B) An alluvial terrace. 
C) A delta. 
D) A stream terrace.

Question 2

Which of the following best describes floodplains?

Accepted Answer

A) They rarely occur in a fluvial landscape created by an "old" river. 
B) They are erosional landforms. 
C) They often evolve after a stream has ceased downcutting at a significant rate. 
D) They are the areas of a stream where terraces are present. 
A) They rarely occur in a fluvial landscape created by an "old" river. 
B) They are erosional landforms. 
C) They often evolve after a stream has ceased downcutting at a significant rate. 
D) They are the areas of a stream where terraces are present.

Question 3

Structural domes with concentric patterns of rock strata guide stream courses to form which drainage pattern?

Accepted Answer

A) Radial. 
B) Parallel. 
C) Annular. 
D) Dendritic. 
A) Radial. 
B) Parallel. 
C) Annular. 
D) Dendritic.

Question 4

John Wesley Powell put forward the idea of base level.To which does this refer?

Accepted Answer

A) The amount of discharge in a particular reach of a stream. 
B) A level below which a stream cannot erode its valley. 
C) An evolutionary cycle of landscape development from fluvial action. 
D) The average height of a stream channel. 
A) The amount of discharge in a particular reach of a stream. 
B) A level below which a stream cannot erode its valley. 
C) An evolutionary cycle of landscape development from fluvial action. 
D) The average height of a stream channel.

Question 5

Which is the general term for unconsolidated clay,silt,sand,gravel,and mineral fragments deposited by running water?

Accepted Answer

A) Alluvium. 
B) Deposition. 
C) Aggradation. 
D) Degradation. 
A) Alluvium. 
B) Deposition. 
C) Aggradation. 
D) Degradation.

Question 6

Which of the following best describes the relationship of deforestation to sediment load?

Accepted Answer

A) Trees provide dissolved sediments to the stream; as trees are removed,the dissolved loads are diminished. 
B) Trees roots help "anchor" soil; as the trees are removed,the soil more readily erodes into the river channels. 
C) Forestry waste is often dumped in streams,contributing to the suspended loads. 
D) The loss of trees along banks of streams increases stream velocity. 
A) Trees provide dissolved sediments to the stream; as trees are removed,the dissolved loads are diminished. 
B) Trees roots help "anchor" soil; as the trees are removed,the soil more readily erodes into the river channels. 
C) Forestry waste is often dumped in streams,contributing to the suspended loads. 
D) The loss of trees along banks of streams increases stream velocity.

Question 7

Which is a stream that downcuts at the same rate as tectonic uplift,thereby maintaining its course?

Accepted Answer

A) Meandering stream. 
B) Anabranching river. 
C) Antecedent stream. 
D) Rejuvenated river. 
A) Meandering stream. 
B) Anabranching river. 
C) Antecedent stream. 
D) Rejuvenated river.

Question 8

Physical weathering is the main process that contributes to the dissolved load of streams.

Accepted Answer

A) True 
 B)False

Question 9

If the load exceeds a stream's capacity,sediment accumulates in the bed? Which is this process?

Accepted Answer

A) Downcutting. 
B) Degradation. 
C) Aggradation. 
D) Saltation. 
A) Downcutting. 
B) Degradation. 
C) Aggradation. 
D) Saltation.

Question 10

What is the drainage density of a 100 km2 drainage basin with 25 km of stream,running through three rivers?

Accepted Answer

A) 3) 
B) 33.333. 
C) 4 km • km-2. 
D) 0)25 km • km-2. 
A) 3) 
B) 33.333. 
C) 4 km • km-2. 
D) 0)25 km • km-2.

Question 11

A flood plain is best described by which of the following?

Accepted Answer

A) It is an erosional feature located within a depositional feature. 
B) Floodplains are not associated with deposition. 
C) It is generally filled with layers of alluvium. 
D) Despite the name,they are rarely subjected to flooding. 
A) It is an erosional feature located within a depositional feature. 
B) Floodplains are not associated with deposition. 
C) It is generally filled with layers of alluvium. 
D) Despite the name,they are rarely subjected to flooding.

Question 12

Which is the process whereby streams deepen their channel?

Accepted Answer

A) Headwater erosion. 
B) Channel incision. 
C) Stream piracy. 
D) Saltation. 
A) Headwater erosion. 
B) Channel incision. 
C) Stream piracy. 
D) Saltation.

Question 13

A central peak,such as a volcanic mountain,generally produces which drainage pattern?

Accepted Answer

A) Radial. 
B) Trellis. 
C) Parallel. 
D) Annular. 
A) Radial. 
B) Trellis. 
C) Parallel. 
D) Annular.

When a river reaches a base level,its forward velocity rapidly decelerates as it enters a larger body of standing water.Which feature is formed?

Which of the following best describes floodplains?

Structural domes with concentric patterns of rock strata guide stream courses to form which drainage pattern?

John Wesley Powell put forward the idea of base level.To which does this refer?

Which is the general term for unconsolidated clay,silt,sand,gravel,and mineral fragments deposited by running water?

Which of the following best describes the relationship of deforestation to sediment load?

Which is a stream that downcuts at the same rate as tectonic uplift,thereby maintaining its course?

Physical weathering is the main process that contributes to the dissolved load of streams.

If the load exceeds a stream's capacity,sediment accumulates in the bed? Which is this process?

What is the drainage density of a 100 km2 drainage basin with 25 km of stream,running through three rivers?

A flood plain is best described by which of the following?

Which is the process whereby streams deepen their channel?

A central peak,such as a volcanic mountain,generally produces which drainage pattern?

Essentials of Geography

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Earths Modern Atmosphere

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Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

Climate Change

The Dynamic Planet

Tectonics, earthquakes, and Volcanism

Weathering, karst Landscapes, and Mass Movement

Oceans, coastal Processes, and Wind Processes

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Exam 15: River Systems

When a river reaches a base level,its forward velocity rapidly decelerates as it enters a larger body of standing water.Which feature is formed?

Which of the following best describes floodplains?

Structural domes with concentric patterns of rock strata guide stream courses to form which drainage pattern?

John Wesley Powell put forward the idea of base level.To which does this refer?

Which is the general term for unconsolidated clay,silt,sand,gravel,and mineral fragments deposited by running water?

Which of the following best describes the relationship of deforestation to sediment load?

Which is a stream that downcuts at the same rate as tectonic uplift,thereby maintaining its course?

Physical weathering is the main process that contributes to the dissolved load of streams.

If the load exceeds a stream's capacity,sediment accumulates in the bed? Which is this process?

What is the drainage density of a 100 km2 drainage basin with 25 km of stream,running through three rivers?

A flood plain is best described by which of the following?

Which is the process whereby streams deepen their channel?

A central peak,such as a volcanic mountain,generally produces which drainage pattern?

Essentials of Geography

Solar Energy to Earth and the Seasons

Earths Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

Climate Change

The Dynamic Planet

Tectonics, earthquakes, and Volcanism

Weathering, karst Landscapes, and Mass Movement

Oceans, coastal Processes, and Wind Processes

Glacial and Periglacial Landscapes

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

Filters