Final answer:
Volcanic eruptions have affected most volcanoes in the Highlands of Papua New Guinea, enriching the region with valuable resources.
Explanation:
Most volcanoes in the Highlands of Papua New Guinea have undergone volcanic eruptions that have significantly impacted the region's landforms and natural hazards. Volcanic vents deep under the sea continue to bring hot magma and minerals to the surface, enriching the ocean floor with exploitable resources. Papua New Guinea's claim over these islands and resources has also led to political tensions in the region.
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