Sydney's R crossword

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Across
  1. 3. plants absorb nitrogen compounds from the soil and use them to makr proteins that animals then eat and digest the proteins to use in their body
  2. 6. water leaves the earth and turns in to a gas called water vapor
  3. 9. the movement of carbon from the atmosphere into living organisms,
  4. 10. the movement of oxygen
Down
  1. 1. a model of how energy flows through the food train
  2. 2. all the intererrlated food chains that are possible in an ecosystem
  3. 4. dead organisms are decomposed by fungi and bactiria using oxogen from the atmosphere
  4. 5. the movement of nitrogen from the atmosphere into living organisms,
  5. 7. where plants get their energy
  6. 8. other soil bacteria convert to the nitrogen compounds back into nitrogen gas,