Life and Earth's Crust — Unit test Answers

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1
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The movement of continents has affected weather patterns by _______.

A
separating the continents
B
creating mountain ranges
C
changing the location of the continents
D
all of the above
2
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The two principal ways to describe Earth’s structure are based on the _______.

A
chemical composition and thickness of layers
B
chemical composition and mechanical properties of layers
C
mechanical properties and thickness of layers
D
the composition and viscosity of minerals
3

Which of the following is not a possible environmental consequence of urban sprawl?

A
deforestation
B
pollution
C
loss of natural resources
D
none of the above
4

Where is oceanic crust thickest?

A
at mid-ocean ridges
B
in the center of ocean plains
C
at deep-sea trenches
D
none of the above
5

Which of the following is a way that minerals are used?

A
industry
B
construction
C
technology
D
all of the above
6

The urban migration trend has stopped worldwide.

A
T
B
F
7

A _______ is formed when tectonic plates collide.

A
rift
B
subduction zone
C
fault
D
all of the above
8

Surface mining is more ecologically damaging than subsurface mining.

A
T
B
F
9

Which of the following is a reason conflicts over zoning decisions can become a divisive issue?

A
Zoning decisions are often wrong and result in significant financial hardship for a city.
B
Zoning decisions do not always change over time and can become antiquated.
C
Establishing zoning types is an expensive process.
D
Zoning regulations prevent new businesses from competing with established businesses.
10

How might environmental manipulation of a crop have unexpected consequences?

A
The new crop may require more water than the original.
B
The crop may harm the environment.
C
The yield may be reduced.
D
All of the above
11

Pesticides are best described as _______.

A
polluting chemicals toxic to all living things
B
chemicals that destroy 33% of the world’s potential food supply
C
toxic chemicals used to control weed populations
D
toxic chemicals used to control pest populations
12

Which of the following best describes what led to London’s “killer fog” in 1952?

A
Pollution from the air contaminated the water supply which is what killed people.
B
Millions of coal fires and stagnant air caused toxic fumes to build up in the air.
C
Poor city design led to faulty ventilation in houses.
D
Soot from forest and wildfires in the surrounding areas blew over the city.
13

Cities that have available space in surrounding areas, such as Los Angeles, are likely to experience upward growth rather than urban sprawl.

A
T
B
F
14

What is true of both earthquakes and volcanoes?

A
They are caused by movement of tectonic plates.
B
They are potentially devastating to local environments.
C
They occur inland less frequently than along coasts.
D
All of the above are true of both earthquakes and volcanoes.
15

Which of the following best describes the interaction between Earth’s crust and living organisms?

A
Raw materials essential for life are cycled through Earth’s crust.
B
Fossil fuels are a valuable energy source for the biosphere.
C
The continental crust allowed the evolution of life on land.
D
The crust recycles the organic materials in sedimentary rock.
16

How does mining affect local populations?

A
Mining is a vital part of the economy of surrounding towns.
B
Mining introduces pollution into local water supplies.
C
Mining disrupts local populations of flora and fauna.
D
All of the above are true.
17

Which of the following is a long-term consequence of mining on the Earth?

A
erosion
B
an open pit
C
sedimentation
D
all of the above
18

Which of the following could be found on either public or private land?

A
state park
B
single-family residence
C
mine
D
factory
19

Why does mining have such an impact on the environment?

A
Mining only affects the living parts of the environment.
B
Because minerals are within the Earth’s surface, extraction causes destruction.
C
Mining requires the absolute destruction of an area to be cost-effective.
D
Areas that are mined can never again sustain plant life.
20

Crust and lithosphere refer to the same layer of the Earth.

A
T
B
F

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