Earth science

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Across
  1. 2. to keep something longer
  2. 3. enough, full
  3. 4. synonym of air
  4. 5. a statement that need to proof
  5. 6. land creatures
  6. 8. extinction
  7. 9. replace
  8. 10. decided
  9. 13. Micro Organisms
  10. 14. target, position
Down
  1. 1. take care of environment
  2. 5. activate something
  3. 7. distract, abrupt
  4. 11. huger
  5. 12. died, extinction