12. How does an igneous rock form and then change into a metamorphic rock? (1 point)
Igneous rock forms from cooling lava and then forms layers to change into metamorphic rock.
Igneous rock forms from layers of rock and then melts in magma to form metamorphic rock.
Igneous rock forms from cooling lava and then changes into metamorphic rock under heat and pressure.
Igneous rock forms from layers of rock and then changes into metamorphic rock under heat and pressure.
13. A subduction zone forms when (1 point)
a continental plate slips past another plate causing earthquakes.
two continental plates collide and bend upwards as they move into each other.
an oceanic plate bends underneath a less dense plate and sinks into the mantle.
two oceanic plates move away from each other adding new crust to the ocean floor.