Human Impact on the Environment — Cumulative exam Answers

Why are cane toads in Australia considered an invasive species rather than simply nonnative?a.They are destructive to native species and have no natural predators.b.They reproduce more quickly than native species.c.They have venom glands.d.Large adult specimens are able to hunt snakes.

Which of the following is true about ice ages?a.forests are plentiful and commonb.biodiversity is reducedc.ecosystems are createdd.glaciers recede

Which of the following statements about mining is true?a.Mining has no long-term effects on the Earth.b.Mining is unimportant to the economy.c.Mining has no ecological impact.d.Mining allows useful minerals to be extracted from the Earth.

Changes to the global climate could include _______.a.changes to temperatureb.changes to pressurec.changes to precipitationd.all of the above

Study these images.Which image shows a cumulonimbus cloud?

Zoning laws establish _______.a.what types of buildings can be built in an areab.the uses an area of land can be put toc.who can live in an aread.the types of business that can occupy a building

Which of the following is a potential obstacle to the commercial development of brownfields?a.the presence of pollutantsb.environmental cleanup lawsc.the costs of environmental cleanupd.all of the above

The Clean Air Act would be a reason for the Environmental Protection Agency (EPA) to regulate car emissions.

Which of the following is a benefit associated with the use of energy producing technologies excluding the burning of fossil fuels?a.reduced water useb.reduced air pollutionc.reduced habitat lossd.all of the above

In which region would you find the lowest concentration of public land in the United States?a.the Pacific Northwestb.the West coastc.New Englandd.the Midwest

The Kyoto protocol works by _______.a.mandatory involvementb.voluntary involvementc.imposing trade restrictions on nonparticipating countriesd.offering monetary rewards to participating countries

It is important for _______ to participate in conservation efforts.a.governmentb.businessc.citizensd.all of the above

Pollution in the _______ will have the greatest effect on human health.a.troposphereb.stratospherec.mesosphered.thermosphere

Which of the following methods of agriculture is best suited to the use of large plowing and harvesting equipment?a.rangeland grazingb.American agriculturec.traditional rice cultivationd.Dutch agriculture

Wind, solar and geothermal power are called renewable energy sources because _______.a.tax breaks for these sources are renewed every yearb.they are continuously replenishedc.humans can replenish these sources periodicallyd.they produce few toxic byproducts

How does the use of hydroelectric energy compare to the use of coal?a.Hydroelectric energy is more commonly used than coal.b.Hydroelectric energy is associated with less waste production than coal.c.Hydroelectric energy has a larger environmental impact than coal use.d.Hydroelectric energy requires more land space than coal use.

The efforts of governments and businesses toward conservation and preservation have had a positive impact on the environment.

Biological pest control methods supplement but cannot replace chemical pest control methods.

Which of the following statements about turning points in environmental policy is true?a.Environmental policy has changed over time as a result of pressure from industry.b.Turning points in environmental policy were typically the result of urban expansion.c.Turning points in environmental policy have come about through increased public awareness.d.Environmental policy has changed little over the history of the United States.

Why is preventing pollution at its source the first strategy in minimizing environmental risk?a.It is easier and more effective to prevent pollution than to clean up and dispose of waste.b.Remediation of contamination is easier than pollution prevention.c.Habitat restoration cannot be undertaken with modern technologies.d.Safe waste disposal is the easiest was to minimize environmental risk.