ES Extra Credit Crossword 5/6 (Due 5/7)

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Across
  1. 2. (2 words, no space) The amount of work produced compared to the amount of energy used.
  2. 4. A natural resource that can be mined for profit.
  3. 6. Materials that are consumed to produce energy.
  4. 7. A _________ resource is a natural resource that can be replaced by nature in a short period of time.
  5. 9. Resources that the Earth provides are called _______ resources.
  6. 11. Nuclear _______ is the process in which heavy nuclei are broken down to create a large amount of energy.
  7. 12. The removal of trees from a forested area without replanting enough to replace it.
  8. 15. (2 words, no space) The number of organisms that any given environment can support.
  9. 17. The use of organisms to clean up or break down toxic waste.
  10. 18. A ____________ cell is a structure made of silicon that converts solar energy into electricity.
  11. 19. When renewable resources are replaced at the same rate at which they're being used, it's called ___________ yield.
  12. 22. A substance that enters Earth's geochemical cycles and can harm the well-being of living things.
  13. 23. ______ fuels are energy sources that formed over geologic time as a result of the compression and decomposition of organic matter.
  14. 25. _______ fuels are fuels derived from living things.
  15. 26. (2 words, no space) Water pollution that originates from widespread areas (like a whole city).
  16. 28. Environmental factors that do not depend on population size (like storms and fires) are "density-___________ factors".
  17. 31. _____________ power is power generated by converting the energy of moving/falling water into electricity.
  18. 33. Chemicals applied to farm fields to control weeds, insects, and fungi.
  19. 34. A ____________ resource is a resource that exists in a fixed amount and an only be replaced by processes that take millions of years.
  20. 35. Molecules (chemicals) with only hydrogen and carbon bonds, which are found in plant materials (which is why they burn easily).
  21. 36. Nitrogen-______ bacteria are bacteria that can capture nitrogen from the air and convert it into a more useful form.
  22. 37. Plant material compressed by water and sediment, which is highly flammable and can become coal if further compressed.
  23. 38. "___________ growth" is a pattern of growth where a population grows faster as it increases in size.
Down
  1. 1. __________ energy is energy produced by naturally-occurring heat/steam/hot water.
  2. 3. The process where "productive land" (where farming could occur) turns into a desert.
  3. 5. The process of taking land used for mining, and returning it to its original shape and replanting vegetation.
  4. 8. The material left after ore is extracted, which might release toxic elements into groundwater.
  5. 10. Solid, unweathered rock found below layers of soil and aggregate.
  6. 13. (2 words, no space) A yellow-brown haze that forms mainly from automobile exhaust in the presense of sunlight.
  7. 14. (2 words, no space) Water pollution that originates from a single point of origin, such as a sewage treatment plant or industrial site.
  8. 16. Sand, gravel, and crushed stone that naturally accumulate on or near the Earth's surface.
  9. 20. (2 words, no space) An extremely thin area of the ozone layer.
  10. 21. The process of removing salt from seawater to produce fresh water.
  11. 24. (2 words, no space) This involves the global management of Earth's natural resources to meet current and future energy needs.
  12. 27. ________ bonds are a chemical attraction that forms between water molecules. They're responsible for many of the properties of water.
  13. 29. Environmental factors that depend on population size (like disease and predators) are "density-_________ factors".
  14. 30. (2 words, no space) Precipitation like rain, snow, fog, or mist, with a pH of less than 5.0 (which means it's highly acidic).
  15. 32. The simultaneous (at the same time) production of two usable forms of energy.