Criseldaf69viz Criseldaf69viz Science Answered Directions: Write ( R ) if the refers to renewable energy and ( NR ) if it refers to non-renewable energy. Write your answer on the space provided. 1. Fossil fuels 2. Nuclear energy 3. Landfill gas 4. Oil refineries 5. Hydroelectric energy 6. Tidal energy 7. Geothermal energy 8. Gasoline 9. Waterfalls 10. Organic materials 11. Animal wastes 12. Methane 13. Propane 14. Solar energy 15. Wind energy 16. Coal 17. Oil 18. Animal waste 19. Crude oil 20. Biomass energy