The Chisos Mountains in Big Bend National Park in Texas were created by volcanic eruption that occurred____.a)the area in which dinosaurs roamed b)when dinosaurs roamed the areac)did dinosaurs roam the area d)dinosaurs roaming the area

The Chisos Mountains in Big Bend National Park in Texas were created by volcanic eruption that occurred____.
a)the area in which dinosaurs roamed b)when dinosaurs roamed the area
c)did dinosaurs roam the area d)dinosaurs roaming the area