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Catalysts of Earth's Energy Cycle
Challenging puzzle for experienced crossword solvers
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Across
  • 1. Historic turbines harnessing aeolian forces before modern grids
  • 2. Living matter turned energy source through decomposition
  • 3. Characteristic ensuring resource use does not exhaust future stocks
  • 4. Organic compound fueling ancient nonrenewable reserves
  • 6. Converting sunbeams directly into electric currents
  • 7. Renewable energy from controlled flow of aquatic volumes
  • 12. Microbe crafting methane in oxygen-free environments
  • 14. Term describing accuracy, but here a cryptic nod to Carbon-14 dating reliability
Down
  • 5. Process turning photons and CO2 into biomass and oxygen
  • 8. Atomic sunder releasing bound energy in nuclear reactors
  • 9. SANDS Viscous petroleum deposits demanding energy-intensive extraction
  • 10. Carbon-rich bogs acting as slow fossil fuel precursors
  • 11. Harnessing inner heat where magma stirs beneath Earth's crust
  • 13. Rotors converting fluid kinetic force into electricity
  • 15. Life thriving without oxygen, crucial in biogas formation
  • 16. Black gold extracted from sedimentary basins across eras

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