Success Stories — Cumulative exam Answers

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

Why do many fishermen support efforts to protect and restore mangrove forests?a.Most fishermen are environmentalists.b.Many fish breed in mangrove forests.c.They lay their nets in mangrove forests.d.Mangrove forests provide valuable hardwoods.

Sustainability can be achieved through careful resource management.

Which of the following is true concerning sources of water pollution?a.Mine wastes and heavy metals become water pollution through storm water runoff.b.Biodegradable materials like food, wood, and leaves are not considered pollution.c.Petroleum byproducts and fuels end up as pollution principally from oil spills.d.Pesticides and herbicides do not commonly become water pollutants.

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

There are risks associated with drinking potable water.

Which of the following is a way that climate affects soil formation?a.increased precipitationb.warmer temperaturesc.increased windsd.all of the above

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

Soil generation and soil conservation are equally effective agricultural strategies.

Which of the following will not contribute to resource conservation?a.using solar powerb.recycling glassc.using nuclear powerd.using biofuels

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

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

Coral reefs are a vast community of individual organisms.

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

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

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

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

What is an advantage to alternative energy technology?a.Using alternative energy technology increases the demand for fossil fuels.b.Most alternative energy technologies use nonrenewable resources.c.Alternative energy technology can reduce the environmental impact of burning fossil fuels.d.There is no advantage to using an alternative energy technology.

Decomposition in pools, ponds, and lakes takes place mostly in the _______ zone.a.pelagicb.littoralc.benthicd.all of the above

Fossil fuels are an important natural resource used by society. Which of the following best describes fossil fuels? a. They are any liquid fuel derived from once-living matter. b. They are organic fuels derived from ancient plants and animals. c. They are fuels in which dinosaur fossils are commonly found. d. They are naturally occurring inorganic fuels like coal and petroleum. Please select the best answer from the choices provided