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Elemental Energies: Fossil to Photovoltaic
Challenging puzzle for experienced crossword solvers
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Across
  • 1. Harnessing Earth's internal heat, hot beneath our feet
  • 2. Separating hydrocarbons by boiling point variation
  • 4. Study of heat in chemical transformations powering fuels
  • 8. Barometer type not needing liquid, akin to environmental tech
  • 11. Transforming gas to liquid for easier storage and transport
  • 12. Derived from fossil sources, used in plastics and fuel
  • 13. Alkaline-activated cement alternative with sustainable potential
  • 15. Moon-driven energy extracted from oceanic gravitational pull
Down
  • 3. Membrane process purifying biofuels or solar fluids
  • 5. Quantification of greenhouse gases one's actions emit
  • 6. Capable of splitting nuclei for massive energy release
  • 7. Organic matter that fuels energy cycles, once living
  • 9. Converts sunlight to current, no moving parts involved
  • 10. Rare earth element vital for energy-efficient lighting
  • 14. Power produced by water's kinetic descent

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