people and the biosphere

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Across
  1. 3. type of farming for crops
  2. 6. a process that regulates the atmosphere
  3. 8. coniferous trees like pine
  4. 9. things ecosystems provide us with for survival
  5. 10. non-livig parts of a biome
Down
  1. 1. common primary consumers
  2. 2. another word for native
  3. 4. large-scale ecosystem
  4. 5. doesn't contain rock particles, only decaying plants
  5. 7. permanently frozen ground