AnswersSTPSB_Environmental Science 2627Natural Events and the Environment

Week 4: Natural Events and the Environment Answers

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1
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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.

A
A
B
B
C
C
D
D
2
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Which of the following is a natural disaster that can have a significant impact on human populations?a.hurricaneb.volcanoc.earthquaked.all of the above

A
A
B
B
C
C
D
D
3

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

A
T
B
F
4

Which of the following is not an environmental impact of resource extraction?a.loss of soilb.increased resource supplyc.water contaminationd.loss of vegetation

A
A
B
B
C
C
D
D
5

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 Please select the best answer from the choices provided

A
A
B
B
C
C
D
D
6

The rain that occurs after a volcano erupts would most likely be

A
acidic
B
basic
C
neutral
7

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.
8

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.

A
A
B
B
C
C
D
D
9

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.

A
A
B
B
C
C
D
D
10

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. Please select the best answer from the choices provided

A
A
B
B
C
C
D
D

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