The answer would most likely be Sea-floor spreading because sea-floor spreading mostly occurs at divergent boundaries.
The greatest is coal and then the second greatest is oil
Our solar system is heliocentric.
Helio is greek for Sun centered, and our solar sytem relies and revolves on the sun.
<span>B.
Lava, ash, and other materials from volcanic eruptions gradually build up over time. This is the correct answer. The volcanic molten material is ejected from fissures or initial cones and as the lava flows out and cools and as the pyroclastic materials solidify and tumble down the slopes, they build up the flanks of the volcanoes.</span>