Renewable Energy Origins
This renewable energy source is harnessed from moving air.
What is wind energy?
The most widely used fossil fuel, this energy source comes from ancient plant materials.
What is coal?
One major benefit of solar energy is its lack of this type of harmful emission.
What are carbon dioxide emissions (or greenhouse gas emissions)?
This country is the largest global consumer of energy.
What is China?
_______ energy is considered sustainable because it relies on this naturally occurring atmospheric phenomenon.
What is wind?
Derived from the sun’s rays, this energy source is often used to power homes and businesses.
What is solar energy?
This type of fossil fuel forms from the remains of marine organisms over millions of years.
What is oil (or petroleum)?
One environmental risk of fossil fuel use is the release of this greenhouse gas.
What is carbon dioxide?
Fossil fuels account for approximately this percentage of global energy use: 50%, 75%, or 90%?
What is 75%?
This term describes the ability of a resource to meet present needs without compromising future generations.
What is sustainability?
This type of renewable energy originates from the Earth's internal heat.
What is geothermal energy?
This nonrenewable energy source is derived from mining radioactive elements such as uranium.
What is nuclear energy?
Wind energy reduces dependence on fossil fuels but poses a threat to these animals.
What are birds (or bats)?
Energy consumption in homes is typically highest for heating and cooling or for lighting and appliances?
What is heating and cooling?
Sustainability potential of solar energy can decrease if these toxic materials used in solar panels are not properly disposed of.
What are heavy metals (or toxic materials)?
This renewable energy source uses organic materials such as plants and waste to generate power.
What is biofuel?
Known for its liquid form, this fossil fuel is a key component of gasoline.
What is crude oil?
A key economic risk of nuclear energy is the high cost of constructing and maintaining these facilities.
What are nuclear power plants?
As of recent trends, this renewable energy source has the fastest-growing consumption rate globally.
What is solar energy?
Overuse of this type of biofuel source can lead to soil depletion and food shortages.
What are crops (or agricultural biofuels)?
Energy generated by the movement of ocean waves or currents is referred to as this.
What is tidal energy?
This type of energy is produced when atomic nuclei are split in a process called ___________.
What is nuclear fission?
While biofuels can reduce greenhouse gas emissions, overproduction may lead to the destruction of this type of ecosystem.
What are rainforests (or ecosystems, such as tropical rainforests)?
Despite its high energy efficiency, this nonrenewable energy source generates hazardous radioactive waste.
What is nuclear energy?
A sustainable energy system must balance environmental, social, and this third type of consideration.
What is economic (or financial)?