Environmental Science

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Across
  1. 4. Things that limit population growth
  2. 5. car Emissions
  3. 6. act of leaving
  4. 9. Percent of increase stays the same
  5. 13. act of entering
  6. 16. long,deep cracks or openings
  7. 17. Human-centered
  8. 18. Came up with natural selection
  9. 20. where a species lives
Down
  1. 1. Increase and decrease of individuals
  2. 2. densely populated area
  3. 3. someone who studies populations
  4. 7. Max rate population can increase
  5. 8. Earth-centered
  6. 10. A process that leads to evolution
  7. 11. surroundings and everything that affects and organism during its lifetime
  8. 12. Life-centered
  9. 14. attitude of active care and concern for naural lands
  10. 15. Vital source of financial and technical assistance to developing countires around the world
  11. 19. sedimentary rock formed from layers of clay