Final answer:
The trees on Rapa Nui were likely used for building materials, wood ladders, ropes to transport the moai, canoes, and firewood, contributing to severe deforestation and eventually impacting the island's culture.
Step-by-step explanation:
The Rapa Nui deforestation has been described by Diamond as "the most extreme example of forest destruction in the Pacific," and the trees on the island were likely used for several purposes. The moai, which are iconic monolithic carved human figures, required considerable effort to transport across the island. The trees were likely used to make wood ladders and ropes for this purpose. Additionally, the islanders used wood for building materials for their homes, for making canoes, and for firewood. Without wood for boats, the islanders eventually became trapped on the island. The deforestation had severe impacts on the Rapa Nui culture, contributing to its eventual change and collapse.