Geography Crossword

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Across
  1. 3. the natural home or environment of an organism
  2. 5. species that has no known living individuals
  3. 6. the envelope of gases surrounding the earth
  4. 8. the solid, outer layer of the earth
  5. 11. Release of harmful-materials into evnironment
Down
  1. 1. the variety of life in the world's ecosystem
  2. 2. part of Earth in which life exists
  3. 4. the surroundings in which an organism lives
  4. 7. meeting the needs wihout compromising
  5. 9. treating unfairly in order to benefit
  6. 10. All the water on earth