Vacation, here we come!

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Across
  1. 2. Famous French undersea explorer
  2. 4. This bird turns white in winter
  3. 5. Northern region of water, ice and snow
  4. 7. Not purchasing plastics at stores
  5. 8. Various ways humans trash the Earth
  6. 11. One type of ocean pollution
  7. 12. Geology of the lithosphere
  8. 14. Household use of plastics
  9. 16. Largest carnivore on land
  10. 17. Inner section between crust and core
  11. 19. Ancient supercontinent
  12. 21. Animal interactions based in fun
  13. 22. Part of planet we live on
  14. 24. Not much of this falls in the Arctic
  15. 25. This whale eats krill
  16. 26. Week-long time away from school
Down
  1. 1. Moving masses of land
  2. 3. Native American invention for snow walking
  3. 6. Returning used plastics
  4. 9. Land covering the Arctic
  5. 10. Spiritual hypothesis of a living Earth
  6. 11. Permanently frozen ground
  7. 13. Deep undersea canyon
  8. 15. What to do with devices during vacation
  9. 18. Aquatic swimmer and diver
  10. 20. Mountain vent for magma
  11. 23. Inner and outer parts of planet