Answer:
The other answer is mostly right, but they seem to have mixed up wind and sun. Just finished the test :)
1. Oil - One of the three fossil fuels that is drilled from the Earth to be separated into its different components.
2. Uranium - An atomic energy fuel used in nuclear power plants today for nuclear fission.
3. Sun - A natural and renewable energy source that has great potential but the technology for storing it in an efficient manner remains a problem to be solved.
4. Coal - One of the three fossil fuels that is mined from the Earth and is a pollution issue.
5. Hydrogen - An atomic energy fuel that is plentiful on the Earth and may be used to provide energy in the process of nuclear fusion someday.
6. Natural Gas - One of the three fossil fuels used today that is drilled from the Earth in its pure form.
7. Wind - A natural and renewable energy source that is being harnessed today and holds great promise.
8. Water - A natural and renewable energy source that includes hydroelectric power, tidal power, and geothermal power.