Final answer:
Early humans crossed oceans using boats, island-hopping, and unintentional events such as storms or tsunamis.
Step-by-step explanation:
Early humans crossed oceans using various methods. One common method was by using boats or watercraft. For example, evidence suggests that early humans in Southeast Asia used boats made from hollowed-out tree trunks, known as canoes, to travel across the ocean. These canoes were sturdy and stable enough to transport humans and resources over long distances.
Another method early humans used to cross oceans was by island-hopping. By traveling from one island to another, they were able to gradually move across the ocean. This was a time-consuming but effective strategy that allowed early humans to explore and settle new lands.
Moreover, early humans may have also unintentionally crossed oceans through natural events, such as storms or tsunamis, which could have carried them to distant shores. While these occurrences may not have been intentional, they would have facilitated the movement of early humans across oceans.
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