Which geographic outcome primarily depends on mantle plumes?

💡 Explanation

Intraplate volcanic hotspots occur because of mantle plumes which are localized areas of hot mantle upwelling; therefore, volcanoes form far from plate boundaries, rather than at rifts or subduction zones, depending on plate movement.

• Which risk increases when excessive sediment deposition occurs landward of a natural levee along a floodplain river system?
• Which mechanism restricts magma ascent during subduction beneath continental crust composed largely of felsic rock?
• Which phenomenon diminishes the Coriolis effect at low latitudes near the equator?
• Which outcome predominantly dictates annual global heat circulation?
• Which factor drives oxbow lake formation disproportionately during glacial retreats?
• Which outcome occurs when a barrier island's dune system loses vegetation cover?