Environmental Science Crossword puzzle

1234567891011121314151617181920212223242526272829303132333435
Across
  1. 2. Widely accepted explanation of natural phenomena
  2. 4. Natural process of converting biodegradable waste into fertilizer
  3. 5. Protective blanket of gases surrounding Earth
  4. 6. Makes up about 78 percent of Earth's atmosphere
  5. 11. Study of species distribution
  6. 13. Part of Earth where life exists
  7. 17. Man's best friend
  8. 18. Organized body of knowledge obtained through study and experimentation
  9. 19. Essential element found in cysteine
  10. 22. Excessive algal growth caused by nutrient pollution
  11. 23. Corrosive rain caused by sulfur dioxide
  12. 25. Large marsupial
  13. 26. Study of interactions between organisms and their environment
  14. 29. All water found on Earth
  15. 31. Place where elements are stored in a cycle
  16. 32. Movement of water through plants
  17. 34. Conversion of nitrates into nitrogen gas
  18. 35. Measure of disorder in a system
Down
  1. 1. Flying mammal
  2. 3. A testable explanation for an observation
  3. 7. Everything that affects an organism during its lifetime
  4. 8. Living and nonliving components interacting together
  5. 9. Group of the same species living in one area
  6. 10. First step in the scientific method
  7. 12. Biologically important inorganic form of phosphorus
  8. 14. Has a trunk
  9. 15. Process that converts carbon dioxide into organic carbon
  10. 16. Study of weather and the atmosphere
  11. 20. All organisms living in one area
  12. 21. Outer solid layer of Earth
  13. 24. Process where liquid water becomes water vapor
  14. 27. Founder of the Four Laws of Ecology
  15. 28. Second most abundant element in living organisms
  16. 30. Water stored beneath Earth's surface
  17. 33. Likes to chase mice