Changes to Texas Land
Earth and Space
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Which of the following will most likely increase the amount of
erosion that occurs on the banks of a river?
A
Heavy rains on the mountain that is the river’s water
source
B
High winds over the ocean to which the river flows
C
High temperatures increasing evaporation from the
river
D
Ice formation at the source of the river
The Texas High Plains region does not receive much rain. It
is reasonable to predict that this region, compared to other
ecoregions, would have -
A
less soil erosion.
B
larger river deltas.
C
many mountains.
D
sandy beaches.
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Changes to Texas Land
Earth and Space
3
The illustration provided shows exposed layers of
sedimentary rock in the High Plains region of Texas.
Which of the following best explains the uneven nature of the
exposed rock layers?
A
Different types of rock weather at different rates when
exposed.
B
Wind speeds vary greatly over time in this region of
Texas.
C
An ancient river deposited sediments at different rates
over time.
D
Glacier movement always creates uneven rock
formations.
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Changes to Texas Land
Earth and Space
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5
In Galveston, the beaches are often exposed to hurricanes
originating in the Gulf of Mexico. It is reasonable to predict
that hurricane activity may -
A
create new rivers near Galveston.
B
move sand from the beach to offshore sand bars.
C
cause local earthquakes after the storm.
D
create new river deltas along the beaches.
The Rolling Plains region of Texas has a number of deep
canyons. One would expect this region to have -
A
moving glaciers.
B
deep lakes.
C
flowing rivers.
D
high wind.
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Changes to Texas Land
Earth and Space
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The Blackland Prairie ecoregion of Texas has many exposed
boulders that are smooth and rounded. What feature of this
area caused the boulders to take on these characteristics?
A
Hurricane activity
B
Wind-blown sand and rain
C
Severe droughts
D
Deep and rapid rivers
Rivers carry and deposit sediments all along their course.
Where will the sediments made of the largest and heaviest
particles be deposited?
A
Near the start of the river where water travels fastest
B
In locations where the river banks are the widest
C
In locations where the river banks are the most narrow
D
At the river’s mouth where the river meets the ocean
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