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Unit 8 Test
Test Description: Erosion, weathering, deposition, Regions of Texas and watershed
Instructions: Answer all questions to get your test result.
1) At a quarry, soil was removed to get to the rock layers underneath. Which part of the environment was probably least affected by this soil being removed?
A
ground water
B
plants
C
runoff water
D
air
2) Texas has experienced several years of little or no rainfall. Because of this weather pattern, farmers and ranchers have had great economic hardships and large cities such as Dallas have had to create water rationing laws. What is this type of weathe
A
drought
B
flood
C
hurricane
D
tornado
3) The geotropism of plant roots cause rocks to break apart; this is an example of
A
deposition
B
physical weathering
C
erosion
D
chemical weathering
4) Wildebeest are cow-like animals with horns. They migrate in herds across Africa in search of the grasses they feed on. Wildebeests are prey for lions. What impact would a drought have on the wildebeest and lion populations.
A
Wildebeest populations will increase while lion populations will decrease.
B
Wildebeest and lion populations will both increase.
C
Wildebeest and lion populations will both decrease.
D
Wildebeest populations will decrease while lion populations will increase.
5) Plants serve a dual purpose in the erosion process. They anchor down soil which helps prevent erosion, but in contrast they can also cause erosion. Which of the following best describes a process by which they can cause erosion?
A
Roots can absorb water from the soil and transport it to the rest of the plant.
B
Plants can grow in the soil between rocks, loosening and cracking the material.
C
Soil picked up by the wind and carried as dust for several miles.
D
Plants and roots removed to clear land for construction or farming.
6) Hurricanes, floods, and tornadoes are usually considered catastrophic weather systems because of the damage they cause to homes, roads, buildings, and deaths or injuries to people, but these storms also cause changes to the ecosystems that they force
A
Migratory birds heading south to winter didn't have a resting place.
B
Alligators were displaced to areas closer to people's homes and businesses.
C
Cattle were stranded with no grass to graze upon.
D
All of the above.
7) Which of these natural disasters is most likely to happen with little or no warning?
A
Tsunamis
B
Hurricanes
C
Earthquakes
D
Tornadoes
8) To test water quality, you must take a measurement of the temperature of your sample. A student bumped into your beaker and knocked it over, breaking your thermometer. What is the best way to deal with this accident?
A
Use cardboard to sweep up glass
B
Brush glass into the sink
C
Have teacher take care of broken glass
D
Pick up and dispose of glass in trash
9) The Earth's surface is constantly changing. This is mainly due to the -
A
average yearly rainfall.
B
number of meteors in the night sky.
C
increased amount of decaying soil.
D
action of wind, water, ice and waves.
10) If a large volcano that is on an island erupts, it will impact the local ecosystem. Which of the following is NOT a way the volcano will affect the local ecosystem?
A
The lava will run into the ocean around the island, killing coral reef animals.
B
Lava will run down from the volcano, burning down all the trees around the volcano.
C
The lava from the volcano will heat up the air in the local area and kill all life in the area
D
When the volcano erupts, it will throw dust into the air affecting plants across the island.
11) Which ecoregion of Texas is most likely to be most affected by wind erosion?
A
Gulf Coast Prairies and Marshes
B
Rolling Plains
C
East Texas Piney Woods
D
Blackland Prairies
12) In spring 2003 a natural rock outcropping in New Hampshire called the Old Man of the Mountain collapsed. Which of the following most likely loosened the rock and caused it to fall?
A
Water freezing and thawing inside cracks in the rock
B
Heat turning sedimentary rock into metamorphic rock
C
Volcanic activity producing pressure at the rock’s base
D
Oxygen reacting with iron on the surface of the rock
*select an answer for all questions
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