Answer:
Coal
Explanation:
it's expells the most CO2 into the atmosphere
The source of electricity that adds carbon dioxide to the atmosphere is ;Coal
Most energy sources like fossil fuels ( coal, natural gas and oil ) when used as energy source adds carbon into the atmosphere because they are composed of hydrogen and carbon. therefore fossil fuels are used as a source of energy a percentage of carbon deposited in the atmosphere includes CO₂.
But Coal produces the highest percentage of CO₂ which is deposited to the atmosphere when burnt for energy ( electricity )than every other energy source and this is because Coal is composed more of carbon than hydrogen
Hence we can conclude that the source of electricity that adds carbon dioxide to the atmosphere is Coal.
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