Answer:
Between 70,000 and 100,000 years ago, Homo sapiens began migrating from the African continent and populating parts of Europe and Asia. They reached the Australian continent in canoes sometime between 35,000 and 65,000 years ago.
Explanation:
Civil wars broke out
Tensions between the super powers caused tensions in other countries who relied on the super powers, for trade, and support, also for countries politically dies to these countries.
:) hope it helped
Only the private sector can create both positive and negative externalities.