In 2014, according to U.S. Energy Information Administration data, which of the following sources of energy contributed the smallest share to U.S. electricity generation?

Question

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According to the U.S. Energy Information Administration data in 2014, hydropower contributed the smallest share of electricity generation, accounting for only 6% of total electricity generation. Petroleum contributed 1%, nuclear contributed 19%, and natural gas contributed 27%.

In 2014, According to U