Human Impacts on Earth’s Systems.

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Across
  1. 2. all water found on Earth's surface
  2. 5. sustainable use and protection of natural resources
  3. 10. oil, coal, natural gas
  4. 11. how much water is physically accessible
  5. 14. minimizing impacts on the environment
  6. 16. energy sources that power various means of transport
  7. 17. human actions that impact the environment
  8. 19. how suitable water is for a particular use
  9. 20. a process that scientists follow to guide their research activities
Down
  1. 1. solar, wind, hydro, biomass,geothermal
  2. 3. 78% nitrogen, 21% oxygen, and one percent other gases
  3. 4. how humans occupy a plot of land
  4. 6. actions to reduce the severity or impact of environmental problems
  5. 7. improving one aspect at the cost of another
  6. 8. Large habitats are divided into smaller isolated patches
  7. 9. process of extracting insight from data
  8. 12. where the river meets the sea
  9. 13. substances released into the air
  10. 15. water found in cracks and pores in rocks below the surface of the earth]
  11. 18. rock layer through which ground water flows through