Evidence of hot-spot volcanoes caused by hot,rising plumes under the planet's surface is present on Venus and Mars,as well as on Earth.What distinguishes those on Earth from those on the other planets?
A) Those on the other planets occurred on tectonic plate boundaries,and they are therefore distorted and have spread over the planet surface.
B) Plate tectonics on all three planets has formed chains of small volcano cones,but those on Earth have all occurred under the sea and are hidden.
C) This type of volcano occurred only at the spin axes or poles of the other planets,where tidal stress was greatest,whereas on Earth they occurred near the equator.
D) Plate tectonics on Earth has moved the hot-spot volcanic site continuously over recent geological time,whereas no such movement has occurred on Venus or Mars.

Question

Quizplus · Accepted Answer

Plate tectonics on Earth has caused the hot-spot volcanic site to move over time, whereas there is no such movement on Venus or Mars. Option A is incorrect because hot-spot volcanoes on other planets are not associated with tectonic plate boundaries. Option B is incorrect because hot-spot volcanoes on Earth are not exclusively hidden under the sea. Option C is incorrect because hot-spot volcanoes on Earth can occur at various latitudes, not just near the equator.

Evidence of Hot-Spot Volcanoes Caused by Hot,rising Plumes Under the Planet's