Renewable Energy Resources Puzzle

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Across
  1. 3. geothermal energy is driven by water heating because it is close to ___ underneath the surface
  2. 4. ___ used on growing crops for biomass can pollute the soil
  3. 5. resources are categorized as renewable because the Earth can replace them ____
  4. 7. hydroelectric energy can be captured by moving ____
  5. 9. using renewable energy sources are a better alternative to using nonrenewable resources such as ____
  6. 11. ___ control the flow of rivers and where turbines are located that move to generate electricity because of the moving water
  7. 15. groups of wind turbines are called a ___
  8. 16. the prefix hydro means ____
  9. 18. biomass energy is energy that comes from living things such as plants and ____
  10. 20. energy produced from deep within the Earth
  11. 21. energy from the sun must be captured by ___ to harness the heat and light energy
  12. 23. disadvantages of using wind turbines include being dangerous for flying organisms and very ___
  13. 25. biomass energy is energy that comes from living things such as ____ and animals
  14. 26. in order to capture wind energy, the blades of a ___ must turn a generator that produces electricity
  15. 28. another name for hydroelectric energy
  16. 29. biomass becomes ___ when mixed with gasoline, such as ethanol
  17. 30. energy from the Sun
  18. 31. the prefix therm means ____
  19. 32. ___ energy is captured from moving air moving turbines
Down
  1. 1. building dams can change the ____ of plants and animals up and down river
  2. 2. resources that are found in nature and are useful to people
  3. 6. the prefix bio means ____
  4. 8. the word resources makes them ____ to people
  5. 10. energy sources that naturally renew or replace themselves in a relatively short amount of time
  6. 11. there are still some ____ to using renewable resources
  7. 12. the people of ___ use geothermal energy as their main heat source since they have so much plate tectonic activity
  8. 13. ___ energy is captured by moving water flow
  9. 14. energy from any material that comes from plants or microorganisms that were recently living
  10. 17. turbines turn to generate ____ from moving water or wind
  11. 19. the advantage renewable has over nonrenewable resources are that they take ___ time to replace
  12. 22. most dams are located on big, fast moving ___ which help to create the hydroelectric energy
  13. 24. in order to get energy from biomass, you must ___ the tree scraps, bark, branches and recycled paper
  14. 25. the problem with burning biomass fuels is air ___
  15. 27. the prefix geo means ____