Question

the galapagos island chain is like the hawaiian island chain as they were both formed as the pacific plate moves over a hot spot in the earths mantle. both chains include many extinct volcanoes under the oceans surface. what type of geological feature is this? (1 point) hydrothermal vent convergent boundary subduction zone seamount

Explanation:

A seamount is an underwater volcanic mountain. The Galapagos and Hawaiian Island chains, with extinct volcanoes under the ocean, fit this. Hydrothermal vents are openings for hot water. Convergent boundaries and subduction zones involve plate interactions (not just hot - spot - formed volcanic features like these island chains).

Answer:

seamount