sustainability!!!

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Across
  1. 2. a mushroom
  2. 4. something we breath that surrounds the Earth
  3. 5. land that's wet
  4. 7. planning to attack
  5. 10. the group we are in
  6. 11. growing something
  7. 12. period of time
Down
  1. 1. nearly gone
  2. 3. keeping someone safe
  3. 6. a home of something
  4. 8. sand
  5. 9. grassland