AnswersFL-2001340-Environmental ScienceUnit Test

Unit Test — Cumulative exam Answers

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Which of the following is not a source of air pollution related to human activities?a.gasolineb.garbagec.forest firesd.radon

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Which of the following organisms feed on the detritus found in wetlands?a.aquatic insectsb.birdsc.reptilesd.predatory fish

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Permits in the cap and dividend policy are issued for _______ production.a.carbon dioxideb.timberc.water pollutiond.plastic

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Which of the following best explains the importance of studying the ocean carbon cycle?a.The oceans have a significant impact on the levels of atmospheric gases.b.It is a new field of ocean science.c.The ocean releases one quarter of the carbon dioxide in the atmosphere.d.All of the above

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Which of the following statements about environmental risks to human health is true?a.Environmental health risks are associated only with synthetic compounds.b.Environmental health risks come from natural sources only.c.Environmental health risks are associated solely with human activity.d.None of the above

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The use of biotechnology in agriculture is generally more harmful than beneficial.

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Which of the following is a way that scientific advancements have benefited society?a.increased energy efficiencyb.increased resource usec.increased urbanizationd.changes in the global climate

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Forests are the largest terrestrial carbon sink.

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How is the heat generated by the reactor core of a nuclear power plant used to provide power to buildings?a.It is used directly to heat homes and offices.b.It generates steam, which turns a turbine, powering a generator.c.It generates steam, which is then condensed back to water. This process produces energy.d.All of the above

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Which of the following best explains why the Inuit principally relied on hunting for survival?a.Tundra never thaws sufficiently for crops to grow.b.Prey animals are more scarce in tundra regions.c.The Inuit traditionally live near the coast.d.None of the above

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The high productivity of American agriculture is exemplified by _______.a.low crop yields per farm workerb.high crop yields per farm workerc.the small cultivated area per inhabitantd.the small cultivated area per farmer

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Human use of groundwater has _______ over time.a.increasedb.decreasedc.decreased and then increasedd.remained the same

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Which of the following energy sources is expected to have the highest rate of consumption in 2030?a.coalb.natural gasc.nucleard.renewable energy

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Which of the following is true about glass recycling?a.Recycling glass reduces the rate of deforestation.b.Recycling glass eliminates greenhouse gas emissions.c.Recycling glass is an energy-saving practice.d.Recycling glass has an incredibly short turn around time.

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Bottom trawling is considered destructive because _______.a.it destroys sea floor habitatsb.it depletes fish populationsc.it shatters deep-sea corald.all of the above

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Which of the following is an example of a long-term change to ecosystems?a.seasonsb.tide cyclec.evolutiond.population growth

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Which of the following best explains the environmental problems associated with trawling?a.Trawling always destroys sea floor ecologies.b.Trawling gathers fish indiscriminately.c.Trawling is too selective at gathering fish.d.All of the above

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Which of the following species is an R-selected species?a.Giant tortoisesb.Mosquitoesc.Elephantsd.Redwoods

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Which of the following is not a zoning type?a.commercialb.residentialc.agriculturald.slum

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It is unlikely that the United States will have further turning points in environmental policy, as most important issues have already been addressed.

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