Chapter 16 example #25004

The U.S. generates more electricity from ________ than from any other renewable energy source. A) geothermal B) biomass C) solar D) hydroelectric E) wind

The U.S. consumes more ________ energy than any other renewable energy source. A) geothermal B) biomass C) hydropower D) wind E) solar

What this figure does not tell you is ________. A) what proportion of each renewable energy source the U.S. produces and consumes B) the relative amount of solar energy used to generate electricity compared to other renewable sources C) the proportion of U.S. energy consumption that comes from non-renewable sources D) the relative amount of electricity produced from geothermal energy compared to other renewable sources E) whether wind energy plays any role in U.S. energy and electricity production.

Ocean-derived energy resource in wide commercial use

Rapidly growing and increasingly cheaper renewable energy resources

Biofuel that does not necessitate growing of food crops to produce

Primary material used in making solar photocells

Made from recycled cooking oil, animal fat and other sources

The world's largest hydroelectric dam

Liquid biofuels in heaviest production

Worldwide, the most widely used renewable energy resource is ________. A) solar B) hydroelectric C) biomass D) wind E) nuclear

Biofuels ________. A) can be created by microbial action or burned directly as wood or dung B) requires fossil fuel input to produce C) produces no greenhouse gases when burned D) could not supply an alternative fuel to gasoline E) is a form of fossil fuel

________ strongly influences the amount of energy generated from hydropower. A) The temperature of reservoir water B) Latitude C) The phase of the moon D) The volume of water released and the height of the fall E) the temperature of water in the boiler and turbine

The run-of-river approach to hydropower describes ________. A) impounding water in reservoirs behind concrete dams B) the purchase of state-run dams by major corporations C) dams that are reliable but unsustainable D) the most expensive type of dams to build and maintain E) diversion of a portion of a river's flow through pipes

Which of the following represents proper ranking of the world's total primary energy supply from the greatest to least used? A) fossil fuels, biomass, nuclear, hydroelectric, new renewables B) fossil fuels, biomass, hydroelectric, nuclear, new renewables C) fossil fuels, biomass, hydroelectric, new renewables, nuclear D) fossil fuels, nuclear, hydroelectric, biomass, new renewables E) biomass, fossil fuels, nuclear, hydroelectric, new renewables

Which of the following represents proper ranking of the world's total electricity generation from the greatest to least used? A) fossil fuels, biomass, nuclear, hydroelectric, new renewables B) fossil fuels, biomass, hydroelectric, nuclear, new renewables C) fossil fuels, hydroelectric, nuclear, biomass, new renewables D) fossil fuels, nuclear, hydroelectric, biomass, new renewables E) biomass, fossil fuels, nuclear, hydroelectric, new renewables

Which of the following represents proper ranking of the U.S. total primary energy supply from the greatest to least used? A) fossil fuels, biomass, nuclear, hydroelectric, new renewables B) fossil fuels, biomass, hydroelectric, nuclear, new renewables C) fossil fuels, biomass, hydroelectric, new renewables, nuclear D) fossil fuels, nuclear, hydroelectric, biomass, new renewables E) biomass, fossil fuels, nuclear, hydroelectric, new renewables

New renewables include ________. A) biodiesel B) wind power C) ethanol D) sustainably harvested fuelwood E) "biogas" methane

When hydrogen is burned as a fuel, the primary waste product produced is ________. A) carbon monoxide B) CO2 C) H2O D) hydrocarbons and CO2 E) CO2 and H2O

The only energy source(s) from ocean water so far put into commercial production are ________. A) tidal electrical generators B) tidal and ocean wave generators C) OTEC and ocean wave generators D) OTEC E) tidal and OTEC generators

Harnessing energy by designing buildings to maximize or minimize the absorption of incident solar radiation are ________. A) active solar energy collection B) passive solar energy collection C) Concentrated solar power (CSP) devices D) photovoltaic cell collectors E) hydrogen fuel-cell collectors

As of 2011, the nation leading in generating wind-power is ________. A) China B) the U.S. C) Canada D) India E) Germany

The first stage in generating power from a hydrogen fuel cell is to ________. A) reduce water to hydrogen and oxygen gases B) convert water into a hydrocarbon C) split hydrogen atoms into hydrogen ions (H+) and electrons D) react water with CO2 E) split methane (CH4) into hydrogen atoms and carbon

The rotational energy of the blades of a wind turbine ________. A) drives a generator inside the nacelle compartment to produce electricity B) is used to generate hydrogen from water C) will not occur unless electricity is provided to generate the motion D) is so expensive to produce that no commercial development has been possible E) generates as much greenhouse gases as burning natural gas

Which country leads the world in percentage of electricity derived from hydropower? A) Norway B) Sweden C) Canada D) United States E) Russia

E-85 ________. A) was an international summit of 85 nations that met to restrict greenhouse gas emissions B) was an international summit of 85 nations that met to determine vehicle fuel efficiency standards C) was an international summit of 85 nations that met to restrict CFC use D) is an isotope of uranium used to generate electricity E) is an ethanol—gasoline mixture used in flexible-fuel vehicles

Biodiesel ________. A) is widely used in the United States B) is produced from sugarcane C) can be used in vehicles with diesel engines without engine modification D) is twice as expensive as petrodiesel E) produces more pollution than petrodiesel

Ethanol produced from biomass starts with ________ produced by ________. A) methane; sewage sludge B) hydrogen gas; wind turbines C) ammonia; anaerobic bacteria D) starch; corn and sugar cane E) CO2; burning fossil fuels

U.S. hydropower dam construction was greatest during the ________. A) industrial revolution B) 1930s to 1960s C) 1970s to 2000 D) late 1800s E) early 21st century

Which of the following are documented negative impacts of dams? A) flooding, habitat destruction, alteration of river sediment deposition B) alteration of river salinity C) acid deposition D) increased atmospheric carbon dioxide and CFCs E) increased carbon monoxide emissions, decreased rainfall

The form of energy delivered to an electrical generating turbine in a geothermal facility is in the form of ________. A) radioactive isotopes B) hot water or steam C) molten magma D) warm soils and crushed rock E) heated hydrogen gas

Photovoltaic cells ________. A) require an outside source of electricity to generate electricity on their own B) have small rotational generators built into every cell C) rely on the electrical current produced when silicon is struck by sunlight D) are increasingly costly produce which precludes major commercial application E) are the major form of renewable energy produced in the U.S.

Which of the following is true of corn-produced ethanol? A) results in higher food prices for corn and corn products B) yields more then 10x the energy required to produce it C) does not produce greenhouse gases when burned D) cannot be mixed with other fuels E) does not require inputs of fossil fuel energy

Ultimately, all biofuels are ________, because they are the result of ________. A) geological; sedimentation B) solar; photosynthesis C) inefficient; decomposition by microorganisms D) synthetic; chemical manipulation of hydrocarbons E) polymers; biological metabolic processes

Biofuels and nuclear power may prove useful as ________. A) pollution-free sustainable energies B) energies to bridge the time between fossil fuel depletion and new renewables C) replacement fuels for motor vehicles D) stages in the development of fusion generators E) inexpensive technologies for developing nations

Whether using a food crop as a source of biofuels is environmentally sustainable would have to consider all of the following, EXCEPT ________. A) the impact on food supplies and prices B) the amount of fertilizers used and their impact on aquatic ecosystems C) the amount of pesticides used and their impact on biodiversity and groundwater D) the corporate profits that would be made E) the amount of water and land necessary for the crops

Bagasse and sugar cane-based ethanol are major items in the energy resources of ________. A) China B) Brazil C) the Maldives D) Tuvalu E) Mexico

Both pyrolysis and gasification are ways of producing ________ from ________. A) methane and diesel fuels; biomass B) coal; biomass C) biodiesel; limestone D) hydroelectric fuel; coal E) pesticides and fertilizers; biomass

Ground-source heat pumps ________. A) are an increasing source of small-scale electricity generation B) have been known to cause minor earthquakes C) produce pollution of ground water D) require nearby volcanic activity to be effective E) heat and cool houses and buildings more efficiently than conventional methods

Globally, more than 80% of all primary energy for today's economies comes from ________. A) nuclear power B) hydropower installations C) biofuels D) fossil fuels E) solar, wind and ocean tides and waves

More and more wind farms are being located ________ because winds are stronger there. A) in densely populated urban areas B) offshore C) in deserts D) in the arctic E) in mature forests

All the following are true of using solar photocells, EXCEPT ________. A) great for decentralized power production, away from power plants and grids B) very low carbon footprint C) with continued production, manufacturing costs are dropping D) strong encouraged in the U.S. by tax incentives and large development investment E) many new "green collar" jobs being created