What geological feature supports the theory of plate tectonics in the Hawaiian Islands?

• A. Subduction zones
• B. Mid-ocean ridges
• C. Hot spots
• D. Transform faults

Answer: (C)

The geological feature that supports the theory of plate tectonics in the Hawaiian Islands is the presence of hot spots. A hot spot is a location where there is an unusually high concentration of heat from the Earth's mantle, which causes magma to rise and create volcanic activity. In the case of the Hawaiian Islands, the Pacific Plate is moving over a stationary hot spot. As the plate drifts, the magma from the hot spot creates volcanic islands that emerge from the ocean.

This phenomenon explains why the Hawaiian Islands form a chain, with the youngest island, the Big Island of Hawaii, located directly over the hot spot, while the older islands to the northwest, such as Kauai and Oahu, are no longer active volcanically because they are situated farther from the source of the magma. The existence of these islands and their age progression supports the movement of tectonic plates, which is a cornerstone of the plate tectonics theory.