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All of the following statements support fusion as the answer to our energy problems EXCEPT:


A) the process is not yet economically feasible.
B) hydrogen, the principal fuel, is abundant.
C) the fusion process releases an enormous amount of energy.
D) helium, the principal product of fusion, is harmless.

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Alloys are:


A) extracted from rocks by smelting.
B) metal mixtures combined in their molten state.
C) native metals with impurities.
D) metal products that were first utilized about 9000 years ago.

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Coal typically occurs as:


A) large massive outcrops.
B) buried masses within depressions that resulted from ancient swamp basins.
C) layers, alternating with detrital sedimentary rocks.
D) nodules within sedimentary rock strata.

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The most pronounced acid rain damage occurs where, in reference to major industrial regions?


A) Downwind of the source.
B) At lower elevations compared to the source, wind direction is not a factor.
C) Upwind of the source.
D) Locations close to the source, wind direction is not a factor.

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Which of the following statements correctly differentiates between passive and active solar energy?


A) Passive solar energy heats areas by natural radiation, conduction, and convection, while active solar energy heats areas by the circulation of solar- heated water.
B) Passive solar energy can be used in areas where there is abundant sunshine, while active solar energy is transported from sunnier regions to regions receiving very little sunshine.
C) Passive solar energy is used to generate heat, while active solar energy is used to generate electricity.
D) Passive solar energy is used for stationary purposes, such as the heating of a building, while active solar energy is used for transportable purposes, such as running an electric car.

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An increase in carbon dioxide concentrations could produce all of the following effects EXCEPT:


A) a worldwide drop in sea level.
B) drought in many regions.
C) melting of the world's ice sheets.
D) desertification in some regions.

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All of the following nations possess a wealth of natural resources EXCEPT:


A) Japan.
B) Russia.
C) Canada.
D) The United States.

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All of the following are processes that form metal- rich deposits at or near plate boundaries EXCEPT:


A) hot, hydrothermal solutions circulate through oceanic rocks.
B) plate collisions thrust metal- rich, sea- floor rocks above sea level.
C) metal- rich magmas develop above the subducting plate.
D) hot, metal- rich lavas are erupted along transform faults.

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Which one of the following wind characteristics is essential for practical application of wind power?


A) Wind must blow constantly.
B) Wind must blow from a constant direction.
C) Wind must blow forcefully.
D) All of the above.

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The use of nuclear energy is not as widespread as the government once expected for all of the following reasons EXCEPT:


A) the problem of nuclear waste disposal.
B) the potential for theft of weapons- grade plutonium.
C) a shortage of uranium.
D) reactor safety problems.

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Coal originates from the accumulation and decomposition of:


A) marine shellfish.
B) animals such as dinosaurs.
C) land plants.
D) marine microorganisms.

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What are the environmental problems associated with the use of fossil fuels?

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Mining fossil fuels is ecologically disr...

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Which one of the following statements correctly describes a photovoltaic cell?


A) An array of mirrors reflects sunlight onto a large water tower, heating the water to produce steam.
B) Water- filled, roof- mounted panels with black linings absorb maximum sunlight.
C) Sunlight passes through window glass and heats objects within a room.
D) Thin wafers of metal- coated silicon absorb sunlight and generate an electric current.

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Aluminum is concentrated mainly by:


A) secondary enrichment processes.
B) igneous processes.
C) sedimentary processes.
D) hydrothermal processes.

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All of the following are considered renewable energy sources EXCEPT:


A) hydroelectric energy.
B) biomass.
C) geothermal energy.
D) nuclear energy.

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Which of the following statements about the historic use of petroleum is true?


A) The first modern use of petroleum was the use of natural gas in street lights.
B) Petroleum has been used by humans for about 3000 years.
C) The ancient Babylonians used crude oil for making fire arrows for warfare.
D) The first true oil well began pumping in Pennsylvania during the 1850s.

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The primary difference between renewable and nonrenewable natural resources is that:


A) renewable resources can be recycled, but nonrenewable resources cannot.
B) renewable resources are replenished over a short time, while nonrenewable resources are finite or are replenished only over long periods of time.
C) renewable resources are primarily mineral resources, while nonrenewable resources are mostly energy resources.
D) at any point in time there is an infinite supply of all renewable resources, but nonrenewable sources must be replenished over time.

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Discuss the formation and mining locations of phosphorus, potassium, and sulfur, all of which are nonmetal minerals used in agriculture.

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Phosphorus is derived primarily from the...

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The Earth's most abundant fossil fuel is:


A) kerogen.
B) natural gas.
C) coal.
D) petroleum.

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Which of the following statements concerning nonmetals for use in agriculture and industry is NOT true?


A) Phosphorus, potassium, and sulfur are all mined for use in agriculture.
B) Pure quartz sand is the prime ingredient in the production of glass.
C) Asbestos, used because it is inflammable, is mined from shallow marine sedimentary deposits.
D) Principal sources of sulfur include the mineral pyrite and the mineral gypsum, while the principal source of potassium is evaporite deposits.

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