GSU GEO 1113 exam 3 Test Questions
with Actual Detailed Answers 2025-
2026 Updated.
Select the correct option among the following: - Answer Streams only carry water and nothing
else
Streams never overflow their channel
-----Streams define all water moving within a channel on the Earth's surface
Streams are the main contributor to the Earth's hydrologic budget
The area of the Amazon river basin is 7,154,582.4 square kilometers while the Mississippi river
basin is 2,981,076 square kilometers. How many times bigger is the Amazon river basin than the
Mississippi? - Answer 2.4
Of the following streams, which one is more likely to transport the smallest volume of water: -
Answer A stream with a vast drainage basin located in a tropical climate
-------A stream with a small drainage basin located in arid climate
A stream with a small drainage basin located in a tropical climate
A stream with a vast drainage basin located in an arid
A good way to visualize the amount of water that streams carry is by looking at hydrographs.
These sort of diagrams plot the amount of water that flows through a section of a stream in
volume per second. In this case, we are looking at a hydrograph [7] that shows daily mean
streamflow (average streamflow for each day) for four years for the North Fork American River
at North Fork Dam in California. You can see an important feature that occurs around March
(right after January 1998, 1999, 2000, etc, in the chart). The large peaks in the chart are mainly
the result of melting snow. Based on this information select the correct option. - Answer The
snow melt occurs in July
---------The short peaks in 2001 and 2002 may indicate droughts where no snow accumulated in
the highlands
The wettest year was 2001
The maximum recorded stream flow in the diagram is 12000 cubic feet per second
Select the correct option among the following: - Answer Ephemeral streams carry water
throughout the year
,Headward erosion is responsible for the deepening of a stream channel
Downcutting is how channels get longer
Which of the following is FALSE in relation to ephemeral streams? - Answer ------They have
water through the year
The water supply is limited and the stream bed lies above the water table for most of the year
Streams whose watersheds lie entirely within an arid region tend to be ephemeral
Their dry stream beds are called arroyos
The difference between the drainage basin and the drainage divide is - Answer ----The
drainage basin is the area that includes all of the low-order and high order streams while the
drainage divide corresponds to the highlands that separate drainage basins.
The drainage divide is the area that includes all of the low-order and high order streams while
the drainage basin corresponds to the highlands that separate drainage basins.
The drainage basin is the area that includes all of the low-order and high order streams while
the drainage divide corresponds to the highlands that separate drainage basins and is also
called a watershed.
The drainage basin is the area that includes all of the only the low-order streams while the
drainage divide corresponds to the high order streams areas.
Which of the following descriptions matches that of a braided channel? - Answer It has many
points of curvature. The stream curves downstream resulting in many smooth curves some of
them extraordinarily tight
Their curvature is gentle even over a steep slope
, -----Multiple channels are separated by islands of gravel, sand or boulders
All interconnected streams in a watershed are called__ - Answer Trunk streams
Tributaries
-----a Drainage network
Local base levels
Ultimate base levels
Dendritic - Answer drainage pattern resembling the branches of a tree. All directions
Parallel - Answer topography has a uniform steep stope and streams arrange parallel to each
other
trellis - Answer substrate is composed in many instances by alternating soft and hard rocks
that are tilted
rectangular - Answer rocks with a grid of fractures
A stream has a cross-sectional area of 80 m2. The velocity of the water has been measured at
10 meters per second. What is the total discharge of this stream at the location of these
readings in m3/s - Answer 800
Refer to the area specifications in question 16. Engineers fix the stream so that its width and
depth cannot increase even if the water amount increases. Perhaps they force the stream to
flow through a concrete liner. A flood occurs and the discharge increases to 10,000 cubic meters
per second. What is the velocity of the stream in m/s? - Answer 125
A stream continually breaks down the rocks that they flow through by____ - Answer
Dissolution, pollution, and ablution
----Dissolution, scouring, and abrasion
with Actual Detailed Answers 2025-
2026 Updated.
Select the correct option among the following: - Answer Streams only carry water and nothing
else
Streams never overflow their channel
-----Streams define all water moving within a channel on the Earth's surface
Streams are the main contributor to the Earth's hydrologic budget
The area of the Amazon river basin is 7,154,582.4 square kilometers while the Mississippi river
basin is 2,981,076 square kilometers. How many times bigger is the Amazon river basin than the
Mississippi? - Answer 2.4
Of the following streams, which one is more likely to transport the smallest volume of water: -
Answer A stream with a vast drainage basin located in a tropical climate
-------A stream with a small drainage basin located in arid climate
A stream with a small drainage basin located in a tropical climate
A stream with a vast drainage basin located in an arid
A good way to visualize the amount of water that streams carry is by looking at hydrographs.
These sort of diagrams plot the amount of water that flows through a section of a stream in
volume per second. In this case, we are looking at a hydrograph [7] that shows daily mean
streamflow (average streamflow for each day) for four years for the North Fork American River
at North Fork Dam in California. You can see an important feature that occurs around March
(right after January 1998, 1999, 2000, etc, in the chart). The large peaks in the chart are mainly
the result of melting snow. Based on this information select the correct option. - Answer The
snow melt occurs in July
---------The short peaks in 2001 and 2002 may indicate droughts where no snow accumulated in
the highlands
The wettest year was 2001
The maximum recorded stream flow in the diagram is 12000 cubic feet per second
Select the correct option among the following: - Answer Ephemeral streams carry water
throughout the year
,Headward erosion is responsible for the deepening of a stream channel
Downcutting is how channels get longer
Which of the following is FALSE in relation to ephemeral streams? - Answer ------They have
water through the year
The water supply is limited and the stream bed lies above the water table for most of the year
Streams whose watersheds lie entirely within an arid region tend to be ephemeral
Their dry stream beds are called arroyos
The difference between the drainage basin and the drainage divide is - Answer ----The
drainage basin is the area that includes all of the low-order and high order streams while the
drainage divide corresponds to the highlands that separate drainage basins.
The drainage divide is the area that includes all of the low-order and high order streams while
the drainage basin corresponds to the highlands that separate drainage basins.
The drainage basin is the area that includes all of the low-order and high order streams while
the drainage divide corresponds to the highlands that separate drainage basins and is also
called a watershed.
The drainage basin is the area that includes all of the only the low-order streams while the
drainage divide corresponds to the high order streams areas.
Which of the following descriptions matches that of a braided channel? - Answer It has many
points of curvature. The stream curves downstream resulting in many smooth curves some of
them extraordinarily tight
Their curvature is gentle even over a steep slope
, -----Multiple channels are separated by islands of gravel, sand or boulders
All interconnected streams in a watershed are called__ - Answer Trunk streams
Tributaries
-----a Drainage network
Local base levels
Ultimate base levels
Dendritic - Answer drainage pattern resembling the branches of a tree. All directions
Parallel - Answer topography has a uniform steep stope and streams arrange parallel to each
other
trellis - Answer substrate is composed in many instances by alternating soft and hard rocks
that are tilted
rectangular - Answer rocks with a grid of fractures
A stream has a cross-sectional area of 80 m2. The velocity of the water has been measured at
10 meters per second. What is the total discharge of this stream at the location of these
readings in m3/s - Answer 800
Refer to the area specifications in question 16. Engineers fix the stream so that its width and
depth cannot increase even if the water amount increases. Perhaps they force the stream to
flow through a concrete liner. A flood occurs and the discharge increases to 10,000 cubic meters
per second. What is the velocity of the stream in m/s? - Answer 125
A stream continually breaks down the rocks that they flow through by____ - Answer
Dissolution, pollution, and ablution
----Dissolution, scouring, and abrasion
