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ENV 100 Week 5 Wileyplus Weekly Exam (June, 2019)
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ENV 100 Week 5 Wileyplus Weekly Exam (June, 2019)

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Question 1 A device that initiates and maintains a controlled nuclear fission chain reaction to produce energy for electricity is a Entry field with correct answer geothermal nuclear apparatus. nuclear combustion chamber. nuclear reactor. nuclear electric engine. electrical fusion device. Question 2 Nuclear energy is released Entry field with correct answer by splitting two electrons. by joining a proton with a neutron. by breaking a chemical bond between two atoms. by splitting an atomic nucleus into two smaller fragments. by combustion of uranium ore. Question 3 Negative environmental impacts from oil and natural gas production may occur due to Entry field with correct answer release of oxides in combustion emissions. accidental spills at extraction sites and during transport. erosion and landslides during withdrawal of resources. improper storage and disposal of spent fuel. unintentional release of methane into atmosphere. Question 4 Which of the following statements is false? Entry field with correct answer The burning of both oil and natural gas produce nitrogen oxides. The burning of both oil and natural gas leads to acid deposition. The burning of both oil and natural gas produce large amounts of sulfur oxides. The burning of both oil and natural gas provide sources of energy. The burning of both oil and natural gas produce CO2. Question 5 At oil refineries, heated crude oil is separated into different products based on ___. Entry field with correct answer water solubility density boiling points sulfur content energy potential Question 6 What does the Oil Pollution Act of 1990 legislate for environmental disasters such as the one pictured below? Entry field with correct answer hazardous pay for clean-up workers tidal barriers to help prevent the spread of oil slicks a remediation protocol for impacted wildlife populations requires that, by 2015, oil be transported by land and not sea a trust fund that pays to clean up oil spills when the responsible party cannot Question 7 What is the best long-term option for the storage of high-level radioactive waste in the U.S.? Entry field with correct answer in compartments at the bottom of cooling towers at nuclear power plants deep burial in steel waste canisters at distant sites from population centers injection underground between layers of clay in remote areas storage in concrete casks at the bottom of the ocean export it to foreign locations Question 8 The greatest hurdle that must be overcome to fully embrace nuclear power to generate electricity is Entry field with correct answer safe storage of radioactive waste. monitoring low-level radiation continuously being released into the surrounding region. filtering the release of CO2 contributing to greenhouse gasses. deactivating radioactive water flushed from cooling towers. increased safety measures to decrease the potential for nuclear explosion releasing radiation into the atmosphere. Question 9 Incorrect answer. Your answer is incorrect. In the United States, what sector consumes the greatest portion of the nation’s total energy? Entry field with incorrect answer transportation homes and offices industry mining solid waste management Question 10 What is fluidized-bed combustion? Entry field with correct answer a device that initiates and maintains a controlled coal burn a method of burning coal underwater to reduce CO2 emissions a filter that cleans power plants’ exhaust from coal combustion a clean-coal technology that neutralizes acidic sulfur compounds produced during combustion a pressurized water vessel that is used to extinguish coal fires Question 11 What technology can make coal a cleaner fuel? Entry field with correct answer fluidized-bed combustion building smoke stacks taller implementing a prewash of coal prior to combustion using lower quality, high sulfur coal mixing coal with natural gas to create a hybrid fuel Question 12 A major public concern about nuclear power plants stems from Entry field with correct answer use of fossil fuels to run the reactors. the higher consumer costs for electricity. fear of nuclear accidents. excessive emissions of greenhouse gases. size of real estate needed to house the nuclear power plant facility. Question 13 The best example of an energy storage element in a solar energy system is the Entry field with correct answer natural gas in a propane tank that can be used for cooking. structural overhang that blocks sunlight in a passively cooled home. insulated windows in a passively heated solar home. hot water tank of a solar hot water system. sun-tracking mirrors in a power tower system. Question 14 What is the fuel that is used to power a fuel cell? Entry field with correct answer direct solar input propane oxygen uranium hydrogen Question 15 The major advantage of a fuel cell over a standard battery is that Entry field with correct answer fuel cells are less expensive to produce and operate than standard batteries. a fuel cell generates electricity without the need for positive or negative electrodes but batteries have these electrodes. fuel cells produce power as long as they are supplied with fuel whereas batteries store a fixed amount of energy. fuel cells generate small amounts of CO2 and sulfur oxide emissions compared to the large amounts emitted by standard batteries. fuel cells do not have any advantages over standard batteries. Question 16 Geothermal energy Entry field with correct answer is derived from solar energy. is rises is sea surface temperature. is a byproduct of subsurface mining operations. capitalizes on Earth’s internal temperature. is generated through earthquakes. Question 17 Electric meters can run backward for homeowners participating in net metering. What does this mean? Entry field with correct answer homeowners receive meter credit for excess energy they generate and supply to the utility’s power grid the up front costs for installing renewable energy is recovered by rewinding the home’s electric meter if a homeowner uses less energy in one month than the previous month, then the difference is subtracted from the electric meter homeowners who voluntarily cut back on air conditioning use are granted an electric credit a radio controlled electric meter for remote monitoring allows the utility company to stop the meter during peak demand periods Question 18 Why is biomass an attractive source of energy? Entry field with correct answer a shift to biofuels from petroleum-based fuels would be seamless it makes use of waste products, reducing waste disposal problems it reduces our dependence on fossil fuels it produces lower levels of sulfur and ash than coal combustion all of these choices Question 19 Which of the following biomass energy sources is incorrectly matched with its biofuel product? Entry field with correct answer sugar cane: alcohol oil used to make French fries: biodiesel clay: biogas manure: methane wood: charcoal Question 20 All of the following are disadvantages of photovoltaic solar cell technology except Entry field with correct answer the manufacturing process requires toxic industrial chemicals. the amount of land needed to hold the number of solar panels required for large-scale use. each panel’s low efficiency at converting solar energy to electricity. the steadily increasing manufacturing cost per watt over the last 35 years. the carbon dioxide emissions that contribute to greenhouse gases. Question 21 What type of solar system, illustrated below, is supplying 10% of Georgetown University’s electricity? Entry field with correct answer Photovoltaic cell system Passive solar heating system Forced air re-circulating system Nonrenewable radiant energy system Biomass conversion solar system Question 22 According to the U.S. map below of average daily total of annual solar energy, which state is least suited for producing electricity from solar energy? Entry field with correct answer Nebraska New York New Mexico North Carolina North Dakota Question 23 What type of solar heating system would be most efficient at producing high-temperature water for industrial applications or steam to run turbines that generate electricity? Entry field with correct answer fuel cells that directly convert chemical energy into electricity. biomass generators that burn natural materials to generate heat. solar thermal electric generation systems using mirrors or lenses to concentrate sunlight to heat water. passive solar systems that use building design to maximize winter sunlight to heat water. convection solar heating systems that circulate warm air throughout the liquid. Question 24 What type of heating system is illustrated below for this home in Santa Fe, NM? Entry field with correct answer geothermal wind turbine passive solar nonrenewable hydropower Question 25 Tidal energy cannot become a significant resource worldwide because Entry field with correct answer the accompanying tidal waves cause too much environmental destruction. the equipment required to harness this energy is not yet. few areas have large enough differences in water level between high and low tides to make power generation feasible. sand damages the equipment. tidal energy can become a significant resource worldwide.

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