11 Jun What is an example of an energy source that is renewable
Question
What is an example of an energy source that is renewable and has less environmental impact than fossil fuels?
coal
crude oil
natural gas
bioenergy
How is the sun’s energy production different from the process in which energy is produced in current nuclear power plants?
The sun releases energy through nuclear fission, whereas our current nuclear power technology releases energy through nuclear fusion.
Both the sun and nuclear power plants release energy through the chemical reaction of uranium and hydrogen.
The sun releases energy through nuclear fusion, whereas our current nuclear power technology releases energy through nuclear fission.
Both the sun and nuclear power plants release energy through the chemical reaction of hydrogen and helium.
Which of these statements is NOT true of wind power?
Wind speeds–and therefore power generation–are greater over water.
Wind power has a better EROI ratio than do nuclear power, coal, or natural gas for electricity production.
Wind turbines take up large amounts of land that is then unsuitable for other purposes.
Enough wind is present in the United States to provide all of the U.S. electricity needs.
What is the process behind tidal energy?
the back and forth movement of the daily tidal cycle
electricity generated by the rise and fall of tides
the difference between high and low tides
waves rushing back and forth as a result of tides
Hydropower uses the __________ energy of water to generate electricity.
nuclear
potential
static
kinetic
What is the basis for the use of hydrogen fuel cells?
It is an example of a renewable energy source in action.
It has not been demonstrated to work for powering vehicles.
It will result in the release of pollution to the atmosphere.
It is extremely energy-efficient.
What is electrolysis?
the splitting of water into component hydrogen and oxygen
increasing the efficiency of wind turbines
the generation of energy from wave motion
the conversion of sunlight into electricity in a PV cell
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