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- Multiple ChoicePlease save your changes before editing any questions.One disadvantage to using coal to produce electricity is that coal -forms in a short amount of time.is abundant over a wide area.is not environmentally friendly.is relatively quite affordable.
- Multiple ChoicePlease save your changes before editing any questions.Natural gas is a fossil fuel formed within oil fields and coal beds. What is an advantage of using natural gas as an alternative form of energy?It releases relatively low emissions compared to other fossil fuelsThe stored energy is less concentrated, so more needs to be burnedThere is a limited supply since it is a non-renewable resourceIt tends to be more expensive compared to other fossil fuels
- Multiple ChoicePlease save your changes before editing any questions.A student was asked to give the disadvantages of using biomass as an energy source and stated that there are no disadvantages. Which of the following best evaluates the response of the student?Incorrect, because biomass is available almost everywhere since it a byproductCorrect, because biomass is a renewable fuel source if the biomass is harnessed properlyIncorrect, because biomass is a less concentrated form of energy, making it inefficientCorrect, because the amount of harmful emissions released is less than other fuel sources
- Multiple ChoicePlease save your changes before editing any questions.
A table of typical energy consumption is provided. What is the most significant way to decrease energy consumption in a household according to the graph provided?Turn off computers and other electronics when they are not in useIncrease the temperature of a house in warm months, and decrease it in cool monthsTurn off lighting that is not necessary, or when the household is emptyKeep the refrigerator door closed as much as possible to avoid letting cold air out - Multiple ChoicePlease save your changes before editing any questions.Although hydroelectricity is the least expensive energy source used to generate electricity, most utility companies in the United States do not use this form of energy because -hydro-plants tend to last longer than plants powered by fossil fuels.hydroelectricity causes more pollution, due to the emission of greenhouse gaseshydro-plants are expensive to construct and need expensive machinery.reservoirs associated with dams can be used for irrigation as well as recreation.
- Multiple ChoicePlease save your changes before editing any questions.An advantage of burning coal to generate power for electricity is that coal is -Relatively inexpensive to mine and transport.available in a limited supply.found in few places in the United States.harmful for the environment.
- Multiple ChoicePlease save your changes before editing any questions.What do geothermal and solar energy have in common?. Sunlight is needed for both to generate energy.Both of these energy resources are non-renewable.Neither resource produces greenhouse gases.Neither requires expensive machinery to produce power.
- Multiple ChoicePlease save your changes before editing any questions.Look at the graph provided. What percent of the total energy used in the United States in 2009 came from fossil fuels?16%83%46%54%
- Multiple ChoicePlease save your changes before editing any questions.What is a major disadvantage of using nuclear power to generate electricity?A small amount of power is producedNo greenhouse gases are producedThe power plants are inexpensive to buildThe by-product of nuclear power is radiation
- Multiple ChoicePlease save your changes before editing any questions.The bar graph provided shows the amounts of energy consumed in a typical home for various activities. The greatest impact on reducing the amount of energy used would be achieved by doing which of the following?Purchasing energy-efficient light bulbsSetting the thermostat higher in the summerUnplugging major appliances when on vacationAccessing the internet with a faster computer
- Multiple ChoicePlease save your changes before editing any questions.The chart provided gives some information about four energy sources. Which energy resource would be best for a city that has a limited amount of open space and wants to use an efficient source of energy?Wind energyBiomassNatural GasSolar energy
- Multiple ChoicePlease save your changes before editing any questions.If a community is choosing between solar and wind energy, which advantage would make wind energy the better option?A backup system is necessary when there are cloudy days, or no wind to power the turbinesWind energy is less expensive, and it is limitlessLocations for turbines are limited because obstructions block the windThe electricity generated by wind often varies due to fluctuations in wind speed
- Multiple ChoicePlease save your changes before editing any questions.One advantage of using biomass as a renewable energy source is that biomass -is a less concentrated energy source, making it less efficient.is a more expensive option when compared to other fossil fuels.releases some harmful emissions into the atmosphere when burned.decreases waste products from municipal and agricultural sources.
- Multiple ChoicePlease save your changes before editing any questions.The graph provided shows the typical energy consumption of an average American household. In order to reduce the energy consumption in a home, what is the most significant thing a family can do to decrease their energy consumption?Open the refrigerator door only when necessaryUse energy efficient light bulbs in all the lampsTurn off the air conditioner or heat when the house is emptyRun the dishwasher only when it is full
- Multiple ChoicePlease save your changes before editing any questions.Which of the following recommendations could a community make to its citizens that would do the most to conserve energy resources?Carpool, bicycle, or walk whenever possibleKeep lighting turned on when they are not in useDrivers and all passengers should wear seatbeltsRecycle papers and plastics whenever possible