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Boundaries between the continents - Wikipedia
Invisible lines: how unseen boundaries shape the world around us
Continent - National Geographic Society
Boundaries between the continents Facts for Kids
3.1 Identifying the Boundaries – Introduction to World Regional …
7.1 Identifying the Boundaries – Introduction to World Regional …
Continental Divide - National Geographic Society
6.2: Continental Margins - Geosciences LibreTexts
Boundary - National Geographic Society
Boundary - Education | National Geographic Society