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Which one of the following statements is true?


A) Forest ecosystems contain about half as much carbon as is contained in the atmosphere as carbon dioxide.
B) Most deforestation occurs in North America and Europe.
C) Forests cover about 10% of the total land area of Earth.
D) Globally,the amount of forests protected as reserves or parks is on the increase.

E) All of the above
F) A) and B)

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Considerable efforts have been underway to save the California condor from extinction.This effort is an example of


A) asset management.
B) a renewable resource.
C) preservation.
D) conservation.

E) A) and B)
F) None of the above

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Despite a worldwide moratorium on whale hunting by the International Whaling Commission,


A) Norway,Japan,and Iceland have continued to hunt whales.
B) most nations of the world now permit the hunting of whales.
C) whale meat is now more popular than ever in Japan and China.
D) the impact of whales on commercial wild fish populations requires whale hunting worldwide.

E) C) and D)
F) All of the above

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When completed,the Comprehensive Everglades Restoration Plan will


A) restore much of the region to sugar cane production.
B) redirect much of the water flow southward.
C) increase the amount of water available for crop irrigation.
D) increase the flow of water through the Everglades in the summer.

E) B) and C)
F) A) and B)

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  -The map in this figure represents the location of the world's major A) prairie/grassland biomes. B) forest biomes. C) biomes severely impacted by drought. D) desert biomes. -The map in this figure represents the location of the world's major


A) prairie/grassland biomes.
B) forest biomes.
C) biomes severely impacted by drought.
D) desert biomes.

E) B) and C)
F) None of the above

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The most sustainable worldwide expansion of aquaculture is the production of


A) herbivorous species in the open-ocean.
B) carnivorous species in mangrove swamps.
C) herbivorous species in estuarine waters.
D) carnivorous species in lakes and rivers.

E) A) and B)
F) A) and C)

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We can expect that as mangroves continue to be destroyed worldwide,


A) coastal erosion will increase.
B) fish populations around the world will increase.
C) the pH of the oceans will increase.
D) the aquaculture of prawns will decrease.

E) None of the above
F) A) and C)

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Even-aged and uneven-aged management are used in


A) the lobster industry.
B) silviculture.
C) fishing industries.
D) habitat restoration.

E) None of the above
F) A) and B)

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Between the 1950s and the 1980s,the "new forest"-management strategy of the Forest Service shifted from


A) extracting resources to protecting the ecological health and diversity of forests.
B) protecting the ecological health and diversity of forests to extracting resources.
C) wilderness protection with no commercial logging to widespread commercial extraction.
D) widespread clear-cutting and reduction of total forested areas to a great expansion of forested land.

E) A) and C)
F) B) and D)

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The value of programs such as the Reef Environmental Education Foundation (REEF) lies in


A) their ability to raise funds for coral reef research.
B) their involvement of citizens in the collection of data and the removal of invasive species from coral reefs.
C) their use of untrained volunteers to replace qualified scientists in marine biology.
D) the increase in commercial fishing yields in the Caribbean.

E) A) and B)
F) B) and C)

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Which of the following is an example of natural goods from an ecosystem?


A) pollination
B) ocean fish netted for food
C) control of pest populations
D) carbon sequestration

E) B) and C)
F) All of the above

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The ability of an ecosystem to replenish itself leads to


A) sustainability.
B) decreasing consumptive use.
C) the conversion of ecosystem capital from one form to another.
D) increasing natural resources but declining ecosystem capital.

E) B) and D)
F) None of the above

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In general,as income levels rise,dependence on wild income


A) increases and consumptive use increases.
B) increases but consumptive use decreases.
C) deceases but consumptive use increases.
D) deceases and consumptive use decreases.

E) A) and B)
F) A) and C)

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The phrase "ecosystem capital" is better than the phrase "natural resources" because ecosystem capital


A) includes both the ecological and economic value of natural ecosystems.
B) includes only the economic value of an ecosystem's goods and services.
C) includes only the ecological value of natural ecosystems.
D) includes neither the economic nor the ecological value of an ecosystem's goods and services.

E) A) and B)
F) B) and C)

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Which of the following is the greatest current threat to forests in the United States?


A) earthquakes
B) erosion
C) fires
D) logging

E) B) and D)
F) A) and D)

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Maintaining sustainable human exploitation of ecosystem capital will be increasingly difficult because of


A) overreliance on grains and other plants as a significant portion of the human diet.
B) expanding number of viral and bacterial human diseases.
C) growing pressure from human population on Earth.
D) changing temperature and rainfall patterns

E) A) and B)
F) C) and D)

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The diversity and productivity or coral reefs is most similar to that of


A) desert environments.
B) a natural prairie.
C) tropical rain forests.
D) a river system.

E) All of the above
F) A) and C)

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Increases in ocean temperatures often result in coral bleaching,in which


A) the symbiotic relationship between corals and their algae is disrupted.
B) the calcium carbonate of corals is dissolved away,leaving just the soft animals behind.
C) the water becomes so cloudy that no light can reach the symbiotic algae in corals.
D) high levels of chlorine are released from the corals,killing the fish that swim by.

E) B) and C)
F) All of the above

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Which of the following human activities is most negatively impacting biodiversity around the world?


A) the production of food: agriculture and fisheries
B) the harvesting of fossil fuels
C) the construction of roads in wilderness areas
D) recreational activities

E) B) and D)
F) C) and D)

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Many ecosystems are damaged by attempts to make a quick profit because


A) natural services are valued more than natural goods.
B) ecosystem services require sustained human development.
C) the value of ecosystem services is underappreciated.
D) the prices of most natural goods continue to fall.

E) A) and C)
F) A) and B)

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