Which resources are sometimes unpredictable in terms of energy production? check all that apply. coal wood gasoline natural gas wind turbines

The correct answer is - wind turbines.

The wind turbines are exclusively dependent in their energy production on the winds. The winds are not the most predictable natural occurrence, and also the energy production depends on their speed, as well as how constant they are, thus making this type of renewable energy very unpredictable.

c. 2,000 bce

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