What is the term given to the flat-topped seamounts rising from the ocean floor, which were once volcanic islands eroded by wave action at sea level?

💡 Solution & Explanation

Guyots, also designated as tablemounts, are flat-topped submarine mountains that originated as volcanic islands before wave action at sea level eroded their summits. Abyssal hills represent small topographic elevations on the deep-ocean floor, whereas atolls are ring-shaped coral reefs enclosing lagoons. These submerged geological landforms provide crucial insights into plate tectonics and historical sea-level fluctuations.