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    Solar energy, wind energy, and geothermal energy are some of the _____ energy sources
    
    
    
    23. Solar energy, wind energy, and geothermal energy are some of the _____ energy sources.
    
        - Primary energy sources
- Secondary energy sources
Answer: B) Secondary energy sources
    Explanation:
    Solar energy, wind energy, and geothermal energy are some of the secondary energy sources.