Question 1

Desertification and deforestation are similar in that both involve

Accepted Answer

A)   overpopulation of an area by humans.
B)   loss of plant and animal life in an area.
C)   lack of rainfall in an area.
D)   overgrowth of undesirable plants in an area.
E)   loss of wetland habitats.F) B) and E)
G) C) and D) B

Question 2

Beach erosion is often caused by structures built to prevent erosion.

Accepted Answer

A) True 
 B)False

Question 3

Habitat destruction is the largest cause of the loss in biodiversity worldwide.

Accepted Answer

A) True 
 B)False

Question 4

Human society in its current form is unsustainable because

Accepted Answer

A)   important natural resources are being consumed more quickly than they can be replenished.
B)   renewable energy sources are consuming land and resources more quickly than they can be replenished.
C)   recycling has eliminated the need for the mining of some mineral resources.
D)   freshwater is being effectively preserved through conservation.
E)   diverting agricultural yield for feeding livestock supplies enough protein to fulfill community's dietary needs.F) A) and B)
G) None of the above

Question 5

Which of the following creates the least amount of soil erosion?

Accepted Answer

A)   poor landscaping practices that expose the land to excess wind
B)   overgrazing by livestock
C)   use of drip irrigation systems
D)   deforestation
E)   wetland destructionF) All of the above
G) A) and C)

Question 6

A company that owns an office building decides to build a "green roof." Which of the following is least likely to occur as a result?

Accepted Answer

A)   higher water bills because of the need to irrigate vegetation
B)   fresh fruits and vegetables for employees to take home to their families
C)   additional recreational space for employees to enjoy during work breaks
D)   lower electric bills due to the extra insulation the vegetation provides
E)   lowered rainwater runoff that may create cracks in the roof of the buildingF) A) and B)
G) A) and C)

Question 7

Which of the following practices would play the greatest role in reversing the loss of biodiversity on Earth?

Accepted Answer

A)   redesign city developments to revitalize existing areas instead of developing new ones
B)   increase the number of species housed in zoos and captive environments
C)   establish large-scale captive breeding programs to help bolster wild populations
D)   preserve the genetic material of endangered species
E)   eliminate the opportunity for invasive species to establish themselves in new communitiesF) B) and D)
G) D) and E) A

Question 8

Which of the following human behaviors is considered sustainable?

Accepted Answer

A)   the use of the sun in order to produce a readily available form of energy
B)   consumption of meat by people in the United States
C)   the use of fossil fuels as our primary form of energy
D)   mining, processing, and the use of minerals for everyday products
E)   modern agricultural practices that require large amounts of fertilizersF) C) and D)
G) A) and B)

Question 9

Biodiversity is important in that some organisms and ecosystems play a role in breaking down pollutants.

Accepted Answer

A) True 
 B)False

Question 10

Pollution is defined as

Accepted Answer

A)   an alteration in land usage.
B)   an undesirable alteration to the environment.
C)   the impact of human activity on the environment.
D)   the impact of animal and plant species on the environment.
E)   the introduction of a new species into an environment.F) B) and C)
G) A) and E)

Question 11

Forests help to regulate the global climate by

Accepted Answer

A)   releasing oxygen.
B)   absorbing carbon dioxide.
C)   preventing soil erosion.
D)   absorbing pollutants.
E)   emitting ozone.F) A) and E)
G) B) and E)

Question 12

The main goal of conservation biology is to

Accepted Answer

A)   apply scientific principles to preserving and restoring ecosystems.
B)   promote the needs of certain ecosystems that are determined to be in danger.
C)   prevent the hunting and fishing of species.
D)   prevent the building of large structures like shopping malls and businesses.
E)   promote the welfare of endangered species.F) D) and E)
G) A) and B)

Question 13

Wildlife management is a subfield of biology that supports conservation biology.

Accepted Answer

A) True 
 B)False  True

Question 14

Which of the following activities will help make rural societies more sustainable?

Accepted Answer

A)   plant multipurpose trees
B)   design energy-efficient forms of transportation
C)   create greenbelts
D)   improve storm-water management
E)   promote sustainability by encouraging the recycling of business equipmentF) All of the above
G) A) and D)

Question 15

Biodiversity increases the consumptive value of land, meaning that

Accepted Answer

A)   more value can be derived from the more diverse products produced by ecosystems with high biodiversity relative to land that has been cleared for agriculture.
B)   ecosystems with higher biodiversity consume more resources than those with lower biodiversity, creating more strain on the environment.
C)   ecosystems with low biodiversity consume resources at a higher rate than those with higher biodiversity.
D)   land that has been cleared for agriculture consumes natural resources at a slower rate and is cheaper to maintain.
E)   land with lower biodiversity has many more possible uses for humans than land with higher biodiversity.F) C) and D)
G) A) and D)

Question 16

The requirements of large amounts of fossil fuels and fertilizers in modern agriculture is one of the reasons that human society is unsustainable.

Accepted Answer

A) True 
 B)False

Question 17

Forests and other natural ecosystems, such as wetlands, exhibit the "sponge effect," meaning that they

Accepted Answer

A)   soak up water from runoff and rainfall, and thus accumulate pollutants.
B)   soak up water from runoff and rainfall, releasing it at a regular rate that moderates flooding of streams and rivers.
C)   soak up pollutants from runoff and rainfall, releasing it quickly into streams and rivers and raising their levels.
D)   draw water away from rivers and streams, lowering their levels.
E)   soak up water from runoff and rainfall, saturating nearby ecosystems.F) B) and C)
G) A) and E)

Question 18

Which of the following types of compounds have been implicated in ozone depletion?

Accepted Answer

A)   chlorofluorocarbons CFCs) 
B)   volatile organic compounds VOCs) 
C)   DDT
D)   polychlorinated biphenyls PCBs) 
E)   chromiumF) C) and D)
G) A) and B)

Question 19

Since water is a renewable resource, freshwater is readily available globally.

Accepted Answer

A) True 
 B)False

Question 20

Synthetic organic compounds such as chlorofluorocarbons CFCs) are damaging to the world's freshwater supply.

Accepted Answer

A) True 
 B)False

Exam 32: Human Impact on the Biosphere

Desertification and deforestation are similar in that both involve

Correct AnswerverifiedB

Beach erosion is often caused by structures built to prevent erosion.

Correct AnswerverifiedShow Answer

Habitat destruction is the largest cause of the loss in biodiversity worldwide.

Correct AnswerverifiedShow Answer

Human society in its current form is unsustainable because

Correct AnswerverifiedShow Answer

Which of the following creates the least amount of soil erosion?

Correct AnswerverifiedShow Answer

A company that owns an office building decides to build a "green roof." Which of the following is least likely to occur as a result?

Correct AnswerverifiedShow Answer

Which of the following practices would play the greatest role in reversing the loss of biodiversity on Earth?

Correct AnswerverifiedA

Which of the following human behaviors is considered sustainable?

Correct AnswerverifiedShow Answer

Biodiversity is important in that some organisms and ecosystems play a role in breaking down pollutants.

Correct AnswerverifiedShow Answer

Pollution is defined as

Correct AnswerverifiedShow Answer

Forests help to regulate the global climate by

Correct AnswerverifiedShow Answer

The main goal of conservation biology is to

Correct AnswerverifiedShow Answer

Wildlife management is a subfield of biology that supports conservation biology.

Correct AnswerverifiedTrue

Which of the following activities will help make rural societies more sustainable?

Correct AnswerverifiedShow Answer

Biodiversity increases the consumptive value of land, meaning that

Correct AnswerverifiedShow Answer

The requirements of large amounts of fossil fuels and fertilizers in modern agriculture is one of the reasons that human society is unsustainable.

Correct AnswerverifiedShow Answer

Forests and other natural ecosystems, such as wetlands, exhibit the "sponge effect," meaning that they

Correct AnswerverifiedShow Answer

Which of the following types of compounds have been implicated in ozone depletion?

Correct AnswerverifiedShow Answer

Since water is a renewable resource, freshwater is readily available globally.

Correct AnswerverifiedShow Answer

Synthetic organic compounds such as chlorofluorocarbons CFCs) are damaging to the world's freshwater supply.

Correct AnswerverifiedShow Answer

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B

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A

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True

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