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Questions and Answers
Which of the following is a common primary energy source?
Which of the following is a common primary energy source?
- Solar energy
- Coal (correct)
- Wind energy
- Hydrogen fuel cells
Which primary energy source is derived from radioactive substances?
Which primary energy source is derived from radioactive substances?
- Coal
- Geothermal energy
- Hydro energy
- Nuclear energy (correct)
Which primary energy source is derived from the earth's gravity?
Which primary energy source is derived from the earth's gravity?
- Hydro energy (correct)
- Wind energy
- Coal
- Solar energy
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