Final answer:
Switching to geothermal power promotes sustainability by utilizing the constant and renewable heat from the Earth's subsurface, significantly reducing carbon emissions and eliminating hazardous waste associated with nuclear power.
Step-by-step explanation:
The advantage of switching to geothermal power from nuclear power plants is B. It uses a renewable resource. Geothermal energy, unlike nuclear power, does not rely on the radioactive decay of elements and does not produce hazardous waste that needs to be stored for thousands of years.
Instead, geothermal power plants leverage the heat from the Earth's subsurface, releasing minimal amounts of gas compared to fossil fuels and using scrubber systems to further reduce emissions. Not only do they provide a more sustainable option by utilizing earth's natural heat, but they are also capable of reducing carbon dioxide emissions significantly when compared to fossil fuel plants.