Skills Lesson: Conducting Valid Internet Research — Unit test Answers

Which of the following alternative energy technologies is most likely to be used to power a car?a.windb.geothermalc.biofueld.hydropower

Which of the following is an environmental consequence of importing resources into the United States?a.air pollutionb.habitat lossc.oil spillsd.all of the above

The nuclear accident at Chernobyl was _______ than the accident at Three Mile Island.a.more devastating b.less devastatingc.equally devastatingd.less publicized

Water would be considered a(n) _______. a. potential renewable resource b. potential nonrenewable resource c. actual renewable resource d. actual nonrenewable resource Please select the best answer from the choices provided

Nuclear fusion produces more energy than nuclear fission, but requires more initial energy.

The La Brea Tar Pits are _______.a.a valuable source of petroleumb.filled with tar made from mammalsc.filled with asphaltd.a and b only

Which of the following is a nonrenewable resource?a.geothermalb.solarc.nucleard.biomass

Which of the following statements about energy and trophic levels is not true?a.The amount of available energy decreases at each higher trophic level.b.The energy conversion efficiency decreases at higher trophic levels.c.The net production of energy is higher at lower trophic levels.d.None of the above

Most of the costs associated with using renewable resources are due to _______.a.overuse of resourcesb.atmospheric pollutionc.lack of availabilityd.global warming

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

Which of the following is true about the efficiency of energy transfer in an ecosystem?a.The more energy the organism requires, the more efficient the energy transfer.b.All energy transfers have the same efficiencies.c.The less energy the organism requires, the more efficient the energy transfer.d.The most efficient energy transfers are in large, warm-blooded animals.

Which of the following best explains why ecosystems need a continual influx of new energy?a.Photosynthesis feeds herbivores, carnivores, and decomposers.b.As energy is recycled, a small amount is lost as heat.c.Energy flows through an ecosystem and cannot be recycled.d.Cellular respiration does not feed back into other processes.

Moving through trophic levels _______.a.energy decreasesb.entropy increasesc.biomass decreasesd.all of the above

The small increase in global oil production coupled with an increased demand for those resources leads to _______.a.lack of modern energy sourcesb.increased pricesc.decreased competitiond.decreased prices

Which of the following statements about biofuels is true?a.Biofuels are composed of 100% renewable materials.b.Algae is the leading source of biofuels.c.Energy processing from corn biofuels is not energy efficient.d.Corn is the only source of biofuels.