environmental systems crossword puzzle

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Across
  1. 2. significance a measure of how much impact a resource has on the economy
  2. 6. energy
  3. 9. power
  4. 10. management of the environment and its resources
  5. 11. Find a new way to use items instead of making trash
  6. 12. resources resources that occur in nature without any human assistance
  7. 14. organisms of different species in which at least one of the organisms' benefits
  8. 15. within the Earth’s core
  9. 16. Collect and process materials to repurpose them into a new product
  10. 18. resources resources that occur in nature without any human assistance
  11. 19. flowing water generates electricity
Down
  1. 1. resources resources that can't naturally replenish themselves
  2. 3. the ability to meet the needs of the present
  3. 4. Plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of glucose
  4. 5. from plants or animals
  5. 7. a material that can be used to fulfill a purpose
  6. 8. resources energy sources that cannot be used up and can supply a continuous source of clean energy
  7. 13. Limit the amount of trash generated
  8. 17. living things that depend on the same resources