Prescriptive Test — Cumulative exam Answers

Which of the following occurs from one trophic level to another?a.energy increasesb.entropy decreasesc.biomass decreasesd.all of the above

Increases in entropy lead to _______.a.limitless work outputb.irreversible changesc.energy increasesd.all of the above

Which of the following is not a reason that cane toads became an invasive species in Australia? a. They are poisonous to most animals. b. They are voracious predators. c. They have almost no natural predators. d. They are not well adapted to the Australian climate. Please select the best answer from the choices provided

Why has the spread of the herbicide-resistant hydrilla through Florida’s waterways resulted in them no longer being navigable by most boats?a.Thy hydrilla has induced a drought that drained the waterways.b.The weed clogs propellers that boats use for propulsion.c.The sticky leaves of the weed hold boats in place.d.All of the above

Which of the following is not a strategy for reducing environmental risk?a.safely disposing of wasteb.setting fines for pollutionc.remediating waste generationd.remediating contamination

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

Energy efficiency strategies are based on the assumption that consumers will be willing to pay more in exchange for reduced energy use.

Governments and businesses have little impact on the environment.

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

It is best to say that restoring and protecting estuaries and wetlands _______.a.helps prevent pollution in coastal waterwaysb.results in higher juvenile fish mortalityc.improves the health of coastal ecosystemsd.has no impact on fish populations

Which of the following is an area targeted by countries to reduce environmental impact?a.greenhouse gas emissionsb.wetland destructionc.deforestationd.all of the above

Which of the following is not a reason that nonnative species are reared outside their native ecosystems?a.They are commercially important.b.They are used to replace native species.c.They are used for restocking programs.d.None of the above

What factor determines when a species is considered invasive?a.It has positive environmental impacts.b.It is environmentally damaging.c.It spreads outside its native range.d.It spreads within its natural range.

In which of the following are pollution hazards not found? a. homes b. schools c. businesses d. none of the above Please select the best answer from the choices provided

Which of the following is an example of chemical control of nonnative species?a.mowingb.herbicidesc.net barriersd.inspections

U.S. Fish and Wildlife Services collaborates with _______.a.private landownersb.state agenciesc.industriesd.all of the above

Why might it be beneficial for governments to restrict the types of plants and animals that individuals can keep as pets in a particular environment?

Which of the following organisms is located only in the 3rd trophic level of the soil food web?a.bacteriab.fungic.protozoad.nematodes

What distinguishes brownfields from other land being considered for development?

Explain why transboundary environmental threats like pollution are a problem for both parties, even if one community is principally responsible for the pollution.