Problem: Potential environmental impacts of different energy sources 1. Release of radioactive material 2. Release of hazardous materials used in the production of photovoltaic cells 3. Water level changes affecting local ecosystems 4. Dissolved substances released into the water and atmosphere For each of these energy sources, choose the number of the environmental impact most likely to be associated with it. Geothermal (First number) Nuclear (Second number) Solar (Third number) Tidal (Fourth number) (Give your answer with no words, spaces or punctuation. Your answer should look like 1234, except those aren't the right numbers.) Need Assignment Help?