What is the oldest mountains in the world?

Related questions

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4. What animals live in the Ozark Mountains?
5. Is Ozark filmed in the Ozarks?
6. Is the show Ozark based on a true story?
7. What dangerous animals live in Missouri?
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Tags

1. #originated
2. #greenstone
3. #scientists
4. #mountain
5. #years
6. #range
7. #distinction
8. #holds
9. #oldest
10. #guinness
11. #billion
12. #africa
13. #being
14. #barberton
15. #according
16. #south
17. #thought
18. #world
19. #records
20. #nearly