AnswersMFISD ENVIRONMENTAL SYSTEMS B 22-23 CRUnit Test

Natural Events and the Environment Answers

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1
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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.
2
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Which of the following is not a significant threat to the world’s rainforests?

A
logging
B
agriculture
C
grazing
D
shipping
3

The majority of damage caused by volcanoes is from lava flows.

A
T
B
F
4

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.
5

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

A
T
B
F
6

Why are hurricanes considered more damaging than tornadoes when tornados have stronger winds?

A
Hurricanes only strike coastlines while tornados strike coasts and inland.
B
Hurricanes also cause flooding and occur over a broader area.
C
Tornadoes move more slowly than hurricanes.
D
Tornadoes only occur inland, away from coastlines.
7

Human activities can have an impact on natural disasters.

A
T
B
F
8

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
9

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.
10

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.
11

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.
12

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
13

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.
14

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.
15

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.
16

Human activities can have an impact on natural disasters.

A
T
B
F
17

Why are hurricanes considered more damaging than tornadoes when tornados have stronger winds?

A
Hurricanes only strike coastlines while tornados strike coasts and inland.
B
Hurricanes also cause flooding and occur over a broader area.
C
Tornadoes move more slowly than hurricanes.
D
Tornadoes only occur inland, away from coastlines.
18

The impacts of natural disasters are limited to property damage and loss of life.

A
T
B
F
19

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

A
T
B
F
20

Which of the following is not a significant threat to the world’s rainforests?

A
logging
B
agriculture
C
grazing
D
shipping

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