Challenge it

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Across
  1. 8. when an ecosystem forms from a disaster
  2. 10. when a something rots or decomposes
  3. 12. when everything is balanced and stable
  4. 13. the upper layer of earth where plants grow
  5. 14. population where all the plants and animals are stable
  6. 15. energy from the sun
Down
  1. 1. when a plant uses the sun to make food
  2. 2. a substance formed from many minerals
  3. 3. A substance that provides nourishment for growth
  4. 4. the variety of life in an ecosystem
  5. 5. The first organism during succession
  6. 6. the process where a ecosystem forms with nothing but rocks
  7. 7. an area where many things thrive together
  8. 9. a state where opposite forces are balanced
  9. 11. A home or environment of an animal