Among the energy sources listed, solar energy releases the fewest toxins during its production and use. Solar power harnesses energy from the sun without emitting pollutants or greenhouse gases during operation.
In contrast, natural gas, coal, and oil are fossil fuels that release various toxins and greenhouse gases, contributing to air pollution and climate change. Coal is particularly harmful, as it emits a significant amount of sulfur dioxide, nitrogen oxides, and particulate matter. Natural gas produces fewer emissions than coal and oil but still contributes to air pollution and methane emissions.
Therefore, solar energy is the cleanest option in terms of toxin release.
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