Which of the following are renewable energies and which are fossil fuels: natural gas, wind energy, hydropower, oil shales, solar power, coal, and petroleum.
Hydropower, solar power, wind energy are considered to be renewable energies. Coal, petroleum, natural gas, and oil shales are defined as fossil fuels.
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### Instruction: Which of the following are renewable energies and which are fossil fuels: natural gas, wind energy, hydropower, oil shales, solar power, coal, and petroleum.
### Input: 
### Response: Hydropower, solar power, wind energy are considered to be renewable energies. Coal, petroleum, natural gas, and oil shales are defined as fossil fuels.