WorksheetsEcoregions and WED
Total questions: 15
Worksheet time: 15mins
Name
Class
Date
1.
The map shows the various ecoregions of Texas. Which ecoregion is most vulnerable to wind erosion from hurricanes originating in the Gulf of Mexico?
a)
Post Oak Savannah
b)
Blackland Prairies
c)
Edwards Plateau
d)
Gulf Prairies and Marshes
2.
Sand dunes are large piles of sand that can be found in the
desert. What causes these sand dunes to form?
desert. What causes these sand dunes to form?
a)
Water
b)
Wind
c)
Ice
d)
Volcanoes
3.
From the distinct shapes of sand dunes and their features in a desert, a geologist could most likely determine which of the following?
a)
Direction of the prevailing wind
b)
Daily high and low temperatures
c)
Amount of water nearby
d)
Age of the formations
4.
The Gulf Prairies and Marshes ecoregion experiences significant soil erosion. One would expect the climate in this region to be –
a)
dry and hot.
b)
cold and snowy.
c)
wet and rainy.
d)
warm and humid.
5.
The tall rock formations with smooth surfaces in Big Bend
National Park were formed over time by -
National Park were formed over time by -
a)
rock deposition.
b)
water erosion.
c)
local vegetation.
d)
wind weathering.
6.
The Brazos River is the longest river in Texas, emptying into the Gulf of Mexico. What type of land formation would you expect to find where the river deposits sediments as it
reaches the Gulf?
reaches the Gulf?
a)
A cave
b)
A mountain
c)
A delta
d)
A valley
7.
In the Edwards Plateau, the limestone rocks are highly
vulnerable to chemical and physical weathering. Which of the following land formations would be expected in this area?
vulnerable to chemical and physical weathering. Which of the following land formations would be expected in this area?
a)
Canyons
b)
Lakes
c)
Rivers
d)
Caves
8.
High rains cause the flow in a river to increase. The increase in the river’s flow will most likely have which of the following effects on the environment?
a)
The banks of the river will experience increased erosion.
b)
The river will deposit less material onto its delta.
c)
The path of the river will become more crooked.
d)
The river will dry out completely in a few days.
9.
Weathering of Earth’s surface can have which of the following
effects?
effects?
a)
Movement of sediment
b)
Depositing of sediment in a new place
c)
Breaking down of rocks
d)
Building of mountains
10.
Canyons are formed by -
a)
earthquakes breaking rock layers apart.
b)
wind smoothing out rock formations.
c)
lava flowing from nearby volcanoes.
d)
rivers carrying sediments that weather and erode land.
11.
A valley will take on a U-shape as a result of the movement
of -
of -
a)
Glaciers
b)
Wind
c)
Flowing water
d)
Waves
12.
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.
13.
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?
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.
14.
The Rolling Plains region of Texas has a number of deep
canyons. One would expect this region to have -
canyons. One would expect this region to have -
a)
Moving glaciers
b)
Volcanoes
c)
Flowing rivers
d)
High wind
15.
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)
Moving glaciers
b)
Wind-blown sand and rain
c)
Wave and current actions
d)
Deep and rapid rivers
100 %
