Answer:
Explanation: The huge pressure at these depths (20 to 100 km) squeezes the rock like a sponge, forcing the melted material (magma) to rise toward the surface. Peridotite fragment (originally mantle rock) contained within basalt (partial melt) erupted from a volcano.
North America. Included with Canada and Mexico.
260 million years ago there was a supercontinet called Pangaea
Yes it is, hope that helped.
