Biosphere

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Across
  1. 4. the organisms that break down dead matter
  2. 6. the uppermost layer of soil rich in nutrients
  3. 9. the spheres of earth that supports life
  4. 11. the process by which water changes into vapor
  5. 13. A factor that limit population growth
  6. 14. cutting down trees in large numbers
  7. 16. Organisms that can make their own foods
Down
  1. 1. A series of connected Good chains
  2. 2. the variety of life on earthquake
  3. 3. the gas used by plants during photosynthesis
  4. 5. the gradual increasing earth temperature
  5. 7. The gas essential for respiration
  6. 8. the natural home of an organisms
  7. 10. The main source of energy for earth
  8. 12. A large water body with saltwater
  9. 15. A cold region with ice and little vegetation