Question 1

Knowledge of both basic biology and applied biology are needed to support conservation biology.

Accepted Answer

A) True 
 B)False

Question 2

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) A) and B)
G) All of the above

Question 3

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) A) and E)
G) C) and D)

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

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) All of the above
G) A) and B)

Question 6

Growing livestock is more sustainable than growing crop plants.

Accepted Answer

A) True 
 B)False

Question 7

Desertification is primarily caused by which of the following activities?

Accepted Answer

A)   overgrazing of livestock
B)   overplanting of crops
C)   overuse of farm machinery
D)   lack of rainfall
E)   restoration of wetlandsF) A) and B)
G) D) and E)

Question 8

Which of the following is not a benefit of biodiversity?

Accepted Answer

A)   development of novel medicines
B)   production of fresh water
C)   new and better crop plants
D)   climate regulation
E)   biological magnificationF) C) and E)
G) A) and C)

Question 9

Which of the following explanations about the financial impact of biodiversity on the economy is not correct?

Accepted Answer

A)   Protecting biodiversity prevents damage to farms due to the alleviation of flooding and siltation problems.
B)   Many communities are utilizing biodiversity to assist in wastewater treatment, both lowering costs and protecting the environment in the process.
C)   Loss of biodiversity in many areas of the world has led to increases in local and global average temperatures (global warming) .
D)   Protecting biodiversity has decreased the amount of fresh water available to human populations because of the "sponge effect."
E)   Protecting biodiversity has led to new industries in ecotourism, adding billions of dollars to the economy annually.F) A) and D)
G) None of the above

Question 10

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) C) and D)

Question 11

Which of the following is a consequence of removing water from aquifers?

Accepted Answer

A)   land subsidence including sinkhole formation
B)   loss of habitat for aquatic organisms
C)   lowering of sea levels
D)   water seepage into underground rock beds
E)   sediment buildupF) A) and E)
G) A) and D)

Question 12

Which of the following is/are suspected of causing climate change?

Accepted Answer

A)   fossil fuel usage, deforestation, and agriculture
B)   overfishing and hydropower usage
C)   fossil fuel and hydropower usage
D)   salinization and desertification
E)   erosion, deforestation, pollution, and salinizationF) None of the above
G) B) and C)

Question 13

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 14

Which of the following is not a renewable resource?

Accepted Answer

A)   fossil fuels
B)   food crops
C)   water
D)   wild game
E)   solar energyF) B) and E)
G) A) and B)

Question 15

How are greenhouse gases suspected of causing climate warming?

Accepted Answer

A)   Greenhouse gases absorb solar energy and re-emit it into space before it can reach the Earth's surface.
B)   Infrared energy from space is absorbed by greenhouse gases in the upper atmosphere, which then re-emit the heat towards the surface of the Earth, causing the climate to warm.
C)   Greenhouse gases block solar energy from entering the lower level of the atmosphere.
D)   Greenhouse gases prevent radiation of infrared energy back into space, trapping the heat near the Earth's surface and causing the climate to warm.
E)   Solar energy is absorbed by greenhouse gases in the upper atmosphere and re-emitted towards the Earth's surface as heat, causing the climate to warm.F) All of the above
G) A) and E)

Question 16

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) A) and E)
G) All of the above

Question 17

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) B) and E)
G) D) and E)

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

Hydropower and wind power are similar in that both are

Accepted Answer

A)   nonrenewable energy sources.
B)   renewable energy sources.
C)   commonly used worldwide as power sources.
D)   dependent in part on fossil fuels.
E)   sources of environmental pollution.F) A) and B)
G) C) and E)

Question 20

Preserving biodiversity can increase the value of land and of the resources extracted from it.

Accepted Answer

A) True 
 B)False

Exam 32: Human Impact on the Biosphere

Preserving biodiversity can increase the value of land and of the resources extracted from it.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Hydropower and wind power are similar in that both are

Correct AnswerverifiedShow Answer

Desertification is primarily caused by which of the following activities?

Correct AnswerverifiedShow Answer

How are greenhouse gases suspected of causing climate warming?

Correct AnswerverifiedShow Answer

Which of the following is/are suspected of causing climate change?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Knowledge of both basic biology and applied biology are needed to support conservation biology.

Correct AnswerverifiedShow Answer

Which of the following is not a benefit of biodiversity?

Correct AnswerverifiedShow Answer

Growing livestock is more sustainable than growing crop plants.

Correct AnswerverifiedShow Answer

The main goal of conservation biology is to

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Desertification and deforestation are similar in that both involve

Correct AnswerverifiedShow Answer

Which of the following explanations about the financial impact of biodiversity on the economy is not correct?

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

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

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 is not a renewable resource?

Correct AnswerverifiedShow Answer

Which of the following is a consequence of removing water from aquifers?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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