Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

An accumulation of salts due to evaporation of irrigation water is called ________.

Accepted Answer

A)   salinization
B)   desalinization
C)   desertification
D)   forestation
E)   sedimentationF) A) and E)
G) A) and B)

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

The major cause of the loss in Earth's biodiversity is

Accepted Answer

A)   fossil fuel usage.
B)   pollution.
C)   habitat loss.
D)   overfishing and water pollution.
E)   agricultural runoff.F) A) and C)
G) None of the above

Question 5

Which of the following has not contributed to declines in the world fish catch in recent years?

Accepted Answer

A)   depletion of fish populations through overfishing
B)   use of aquaculture/aquafarming
C)   herbicide and pesticide use
D)   new technologies that increase fishing efficiency
E)   water pollutionF) None of the above
G) C) and D)

Question 6

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 D)

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

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

Accepted Answer

A)   redesigning 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) C) and E)
G) A) and E)

Question 9

Which of the following are suspected "greenhouse gases"?

Accepted Answer

A)   carbon dioxide and oxygen
B)   oxygen and methane
C)   methane and carbon dioxide
D)   nitrogen and carbon dioxide
E)   oxygen and nitrogenF) A) and B)
G) None of the above

Question 10

Which of the following activities does not contribute to beach erosion?

Accepted Answer

A)   construction of groynes
B)   filling in of wetlands for farming
C)   dumping of sewage from coastal cities into the ocean
D)   use of seawalls to protect cities from hurricane storm surges
E)   rising sea levelsF) A) and B)
G) A) and E)

Question 11

Which of the following is a drawback to the use of hydropower?

Accepted Answer

A)   Hydropower consumes more fossil fuels than power plants fueled solely by fossil fuels.
B)   More countries derive more power from fossil fuels as compared to hydropower.
C)   Hydropower causes more pollution than fossil fuels, such as coal or oil.
D)   Hydropower is less efficient as compared to fossil fuels, such as coal or oil.
E)   Water levels below dams are reduced, and large dams disrupt upstream ecosystems.F) A) and B)
G) A) and E)

Question 12

Before solar energy can become a competitive form of energy available for consumers, which of the following events must occur?

Accepted Answer

A)   Energy must be collected, converted into another form, and stored until needed.
B)   Energy must be converted into another form, stored until needed, and then converted into heat.
C)   Energy must be used to heat water, and solar energy is combined with steam to heat a photovoltaic system that produces electricity.
D)   Solar energy passes through a photovoltaic cell, which then stores the energy as heat until it is needed.
E)   Solar energy is used to power a photovoltaic cell, which splits water into hydrogen and oxygen, and the hydrogen can be used to provide energy.F) A) and C)
G) A) and D)

Question 13

Synthetic organic compounds such are chlorofluorocarbons (CFCs) are damaging to the world's fresh water supply.

Accepted Answer

A) True 
 B)False

Question 14

Some rivers have been dammed under the guise of flood control. What might be an unintended consequence of using this approach?

Accepted Answer

A)   saltwater intrusion into the aquifer
B)   reduced fertility of downstream land due to reduced silt deposits
C)   more frequent rainfall
D)   deforestation of land downstream due to reduced silt deposits
E)   increased rainfall due to increased water evaporationF) C) and D)
G) B) and C)

Exam 32: Human Impact on the Biosphere

Before solar energy can become a competitive form of energy available for consumers, which of the following events must occur?

Correct Answer
verified

Which of the following is a drawback to the use of hydropower?

Correct Answer
verified

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

Correct Answer
verified

Which of the following has not contributed to declines in the world fish catch in recent years?

Correct Answer
verified

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

Correct Answer
verified

Some rivers have been dammed under the guise of flood control. What might be an unintended consequence of using this approach?

Correct Answer
verified

Pollution is defined as

Correct Answer
verified

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

Correct Answer
verified

Which of the following activities does not contribute to beach erosion?

Correct Answer
verified

Synthetic organic compounds such are chlorofluorocarbons (CFCs) are damaging to the world's fresh water supply.

Correct Answer
verified

Which of the following are suspected "greenhouse gases"?

Correct Answer
verified

An accumulation of salts due to evaporation of irrigation water is called ________.

Correct Answer
verified

The major cause of the loss in Earth's biodiversity is

Correct Answer
verified

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

Correct Answer
verified

Exam 32: Human Impact on the Biosphere

Before solar energy can become a competitive form of energy available for consumers, which of the following events must occur?

Correct AnswerverifiedShow Answer

Which of the following is a drawback to the use of hydropower?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following has not contributed to declines in the world fish catch in recent years?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Some rivers have been dammed under the guise of flood control. What might be an unintended consequence of using this approach?

Correct AnswerverifiedShow Answer

Pollution is defined as

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following activities does not contribute to beach erosion?

Correct AnswerverifiedShow Answer

Synthetic organic compounds such are chlorofluorocarbons (CFCs) are damaging to the world's fresh water supply.

Correct AnswerverifiedShow Answer

Which of the following are suspected "greenhouse gases"?

Correct AnswerverifiedShow Answer

An accumulation of salts due to evaporation of irrigation water is called ________.

Correct AnswerverifiedShow Answer

The major cause of the loss in Earth's biodiversity is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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