#1. which of the following is true of folded mountains, fault-block mountains, and volcanic mountains? form from the buildup of lava and ash form only at boundaries between two oceanic plates /form only at boundaries between two continental plates /form at both convergent and divergent plate #2.while exploring the land over a tectonic plate boundary, an explorer discovers a geologic structure with steep cliffs and jagged edges. which of the following has the explorer most likely discovered?

a fault-block mountain/ a folded mountain/a hotspot volcano/a volcanic arc #3. which answer choice best describes the difference between island arcs and hotspot volcanoes?

island arcs form only at divergent plate boundaries, whereas hotspot volcanoes form only at convergent plate boundaries./island arcs form only at convergent plate boundaries, whereas hotspot volcanoes form only at divergent plate boundaries./island arcs form when hot, fluid rock rises through thin spots in earth's crust, whereas hotspot volcanoes form when two oceanic plate boundaries push against each other until subduction happens and the plates partially melt./island arcs form when two oceanic plate boundaries push against each other until subduction happens and the plates partially melt, whereas hotspot volcanoes form when hot, fluid rock rises through thin spots in earth's crust.
#4. which answer choice correctly explains why this diagram shows a normal fault?

the fault plane divides two otherwise identical sections of rock./the fault plane runs from the top of the rock to the bottom of the rock at an angle greater than 45 degrees./the block of rock above the angle of the fault plane is raised above the block of rock below the angle of the fault plane./the block of rock above the angle of the fault plane has fallen beneath the block of rock below the angle of the fault plane.

#5. the appalachian mountains are an example of a folded mountain range. based on this information, which of the following processes formed the appalachians?

melted rock called magma rose through holes in earth's crust and gradually solidified as it cooled.
/tectonic movement forced certain segments of earth's crust downward and other segments upward in jagged chunks./one tectonic plate moved beneath another plate at a subduction zone, causing the rock to melt and rise above earth's surface./segments of earth's crust bent and doubled over, and moving wind and water gradually shaped the rock into gently sloping domes.