The major volcanoes on Mars have formed
A) in regions of ridges where the crust is being compressed and buckled without being subducted.
B) directly above stationary hot spots in the mantle.
C) on long,interconnecting ridges and rifts,where magma rising from the mantle is pushing the crust apart.
D) in mountain belts,where the crust is being subducted into the mantle.

Question

Quizplus · Accepted Answer

The major volcanoes on Mars, such as Olympus Mons, the largest volcano in the solar system, formed over stationary hot spots in the mantle. Unlike Earth, Mars lacks plate tectonics, which means its crust does not move over hot spots in the same way. This allows for the formation of extremely large volcanoes as the crust remains stationary over plume sources for long periods.

The Major Volcanoes on Mars Have Formed