yesmypuzel

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Across
  1. 1. the process of carbon returning to the soil
  2. 4. the process commonly known as 'breathing'
  3. 6. radiation the atmosphere blocks
  4. 8. comes from the sun, atmosphere blocks it.
  5. 9. released by plants
  6. 10. the sphere that makes up the crust
Down
  1. 2. plants use it in photosynthesis
  2. 3. where meteorites burn up
  3. 5. blocks radiation
  4. 7. our planet