sustainability

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Across
  1. 4. a instrument with magnetic needle that points south
  2. 6. in biology and ecology
  3. 8. surroundings especially as they affect people and other living things
  4. 10. the science or study of living things
Down
  1. 1. of life or living things
  2. 2. a number, amount or situation that is likely to change
  3. 3. likely to die out or disappear nearly extinct
  4. 5. wearing something away
  5. 7. one of the main masses of land in the world
  6. 9. the plants of a particular area or period