Human Impact on the Environment — Cumulative exam Answers

Buffer zones _______.a.can help regulate the acidity of aquatic ecosystemsb.help increase erosion ratesc.are set up around natural resource areasd.all of the above

Climate change caused by natural disasters cannot have a negative impact on ecosystems.

The following is a chemical reaction for _______ with ozone. a. chlorofluorocarbons b. halons c. UV radiation d. none of the above Please select the best answer from the choices provided

Human health is unaffected by environmental limiting factors.

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.

Which of the following best explains why humans need constant supplies of fresh water?a.Humans need a constant supply of water to provide them with essential vitamins.b.Humans need a constant supply of water to maintain proper hygiene.c.Constant supplies of freshwater are needed because body water is continually being lost.d.Constant supplies of freshwater are not actually necessary for survival.

Which of the following is a negative consequence of scientific advancements on society?a.increased life expectancyb.increased pollutionc.new energy resourcesd.all of the above

The ozone layer is located in the _______.a.troposphereb.stratospherec.mesosphered.thermosphere

An understanding of how human activity affects the environment is important for environmental policy makers.

The ozone layer helps sustain life by absorbing a large amount of incoming UV radiation.

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.

The sustainable use of rainforest resources is exemplified by _______.a.lumber harvestingb.ranchingc.harvesting nutsd.none of the above

Which of the following stages of urban development contributed to an increase in suburban living?a.preindustrialb.industrialc.pedestriand.automobiles

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

Water conservation efforts have been wholly ineffective.

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

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

After the energy crisis of the 1970’s and the OPEC oil embargo, the US _______.a.increased its dependency on foreign oilb.began to wean itself off of foreign oil and the economic vulnerability it bringsc.changed over to all renewable energy sourcesd.began building new nuclear power plants to replace fossil fuel use

Which of the following is not a way that oil production could potentially affect aquatic viability?a.marine oil spills during transportationb.offshore oil drillingc.interruption of water flowd.contamination from waste products