Assertion: continent's region | /r/CapableOf | repeat every 40,000–100,000 years
Facets:
Source sentences:
text: The polar regions have since undergone repeated cycles of glaciation and thaw, repeating every 40,000–100,000 years.
text: The polar regions have since undergone repeated cycles of glaciation and thaw, repeating every 40,000–100,000 years.