AnswersDRHS GA-GSE Environmental ScienceUnit Test

Humans and the Energy Cycle Answers

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1
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Which of the following statement about energy and nutrients in an ecosystem is true?

A
Energy and nutrients flow in one direction through an ecosystem.
B
Energy and nutrients cycle through an ecosystem.
C
Energy cycles through an ecosystem, while nutrients flow in one direction.
D
Nutrients cycle through an ecosystem, while energy flows in one direction
2
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Which of the following is true of the relationship between energy use and quality of life?

A
Energy use has no relationship to overall quality of life.
B
Generally, the quality of life is directly related to an area’s energy use per person.
C
Increased energy use brings about a lower quality of life.
D
A higher quality of life generally leads to a lower energy consumption.
3

The Inuit traditionally relied upon hunting and fishing for a majority of their food because _______.

A
prey animals were plentiful and easy to catch
B
their homelands were not suited to farming or gathering
C
hunting is healthier and easier than gathering
D
none of the above
4

The goal of the world resource simulation center is best described as _______.

A
solving current problems regarding world resource use
B
predicting the future impacts of resource use in the U.S.
C
determining how to manage global resources for all humanity
D
providing education tools for describing global resource use
5

Which of the following is not true concerning the energy harnessed by humans throughout history?

A
Early hominids harnessed the least energy, just that of their own bodies.
B
Fire let humans increase their energy use tenfold.
C
Neolithic farmers were able to harness the energy of animals.
D
Modern humans use more than a hundred times the energy of early humans.
6

Which of the following best explains the factors that led to the dust bowl?

A
Humans had been farming the land for too long without droughts.
B
Temperatures suddenly increased and brought on drought conditions.
C
Poor farming techniques that killed the soil were combined with drought.
D
Humans employed bad soil management practices that were unsustainable.
7

Hunter-gatherer societies traditionally occupied the same territories year-round in order to care for their livestock.

A
T
B
F
8

The best determinant of how an individual measures their quality of life is _______.

A
family and friends
B
education
C
culture
D
demographics
9

Why does culture establish the standard by which quality of life is measured?

A
Cultures are defined by the demographics of their populations.
B
Culture establishes the framework by which individuals judge their environment.
C
Culture defines the domains of family and health that define quality of life.
D
A society’s culture defines its socioeconomic conditions.
10

Which of the following best describes the relationship between economic growth and energy use?

A
Increased energy use leads to increased economic growth.
B
Increased energy use leads to decreased economic growth.
C
Energy use is related to economic growth.
D
Energy use has no relationship to economic growth.
11

Which of the following might not be considered a facet of a quality life?

A
financial resources
B
luxury goods
C
adequate nutrition
D
none of the above
12

The percentage of a hunter-gatherer society’s diet provided by hunting versus gathering was mostly determined by _______.

A
the climate
B
the types of prey
C
hunting skill
D
the size of the human population
13

Which condition is a result of using an anaerobic digester?

A
increase in the road quality by coating with material from the anaerobic digester
B
increase in land fertility due to the addition of the nitrogen and phosphorous byproduct
C
increase in pulmonary diseases due to poor air quality from gases produced in cooking and heating
D
increase in the number of cattle supported by a given area of land
14

In an ecosystem, energy that flows to tertiary consumers ultimately originates from the sun.

A
T
B
F
15

Which of the following statement about energy and nutrients in an ecosystem is true?

A
Energy and nutrients flow in one direction through an ecosystem.
B
Energy and nutrients cycle through an ecosystem.
C
Energy cycles through an ecosystem, while nutrients flow in one direction.
D
Nutrients cycle through an ecosystem, while energy flows in one direction
16

The World Resources Simulation Center is intended to address both current and future resource problems.

A
T
B
F
17

Which of the following best describes the relationship between economic growth and energy use?

A
Increased energy use leads to increased economic growth.
B
Increased energy use leads to decreased economic growth.
C
Energy use is related to economic growth.
D
Energy use has no relationship to economic growth.
18

The World Resources Simulation Center is intended to address both current and future resource problems.

A
T
B
F
19

The Dust Bowl occurred as a result of drought and poor farming practices.

A
T
B
F
20

Which of the following is true of the relationship between energy use and quality of life?

A
Energy use has no relationship to overall quality of life.
B
Generally, the quality of life is directly related to an area’s energy use per person.
C
Increased energy use brings about a lower quality of life.
D
A higher quality of life generally leads to a lower energy consumption.

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