AnswersFHS 2016 TX-Earth and Space ScienceGeologic Maps

Natural Events and the Environment Answers

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1
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Which of the following best explains how a hurricane can increase an area’s susceptibility to future storms?

A
Storm surges cause massive damage to buildings along coastlines.
B
Hurricanes often flood coastal communities.
C
Hurricane strength winds cause large amounts of property damage.
D
Erosion caused by hurricanes can leave coasts more exposed to storms.
2
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Which of the following human activities can increase the risks of flooding?

A
clearing land for farming
B
planting trees
C
soil management
D
widening rivers
3

A dense mix of dry, hot rock fragments and hot gas erupting from volcanic vents at high speed is

A
pyroclastic flow.
B
lahar.
C
fumarole.
D
tephra.
4

Seismic waves do not travel along the Earth’s surface.

A
T
B
F
5

Which of the following best explains why deforestation increases the risk of floods in an area?

A
Tree leaves catch and retain rain water.
B
Trees block the free flow of water.
C
Deforestation increases precipitation.
D
Tree roots improve soil water retention.
6

Which of the following is a natural disaster that can have a significant impact on human populations?

A
hurricane
B
volcano
C
earthquake
D
all of the above
7

Which of the following is not true concerning the impact of volcanoes?

A
Acid rain can result from volcanic eruptions.
B
Tephra are a combination of water and rubble.
C
Damage can continue for years after the initial eruption.
D
The volcanic explosion is the pyroclastic flow.
8

Which of the following best explains how human activities can directly contribute to landslides?

A
Removing plants from hillsides eliminates the root structures that anchor soil.
B
Clearing trees from hills increases the frequency of rainstorms.
C
Human activities tend to reduce the risk of fires.
D
Landslides are not impacted by human activities.
9

The damage caused by Tsunamis is restricted to the area surrounding the epicenter of the earthquake which caused it.

A
T
B
F
10

Which best describes the effects of hurricanes?

A
Hurricanes tend to deposit more sediment than they remove.
B
Hurricanes have storm surges that cause widespread flooding.
C
Hurricanes have wind gusts that are fast but generally weak.
D
Hurricanes do not alter landscapes significantly.

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