The correct answer would be rift. If you looked at the crossword puzzle it showed you the answer.
Plate Tectonics
It broke apart due to the magma beneath and earth's crust. These plates float on the top of the magma.(crust=plates)
It's simple, when the plates collide, the crust of the earth wrinkles forming mountains.
When the plates move apart they will more than likley create a large creak, Depending on how far they move apart. It would be a small creek.
diverge
Those are earthquakes
Divergent plates are tectonic earth plates that spread slowly apart.
Because the earth plates were weak it that area and the small eruption and it began a crack and water from the ocean/sea came into the crack causing the rack to increase between 4-18 miles apart
the plates are apart of the crust,the upper layer of the earth
Magma that has bubbled up through the crack in the Earth's surface.
magma
Faults, graben and mid oceanic ridges.
divergent boundary
separation zone.
Plate Tectonics
It broke apart due to the magma beneath and earth's crust. These plates float on the top of the magma.(crust=plates)
Tectonic plates have been pulling apart forever. At least all the time the earth has been around.