Answer:
Electricity is most often generated at a power plant by electromechanical generators, primarily driven by heat engines fueled by combustion or nuclear fission but also by other means such as the kinetic energy of flowing water and wind. Other energy sources include solar photovoltaics and geothermal power.
Explanation:
A, as carbon is an atomic substance - element
Nuclear energy originates from splitting of uranium atoms a process called fission. This generates heat to produce steam.
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Two types of stoichiometry are; molar mass and coefficients from balanced equation.
The seven dots around flourine are the valence electrons
