Answer:
As given below.
Step-by-step explanation:
1. Dinosaurs
2. Melted,
3. The skin,
4. It has to cool,
5. Gradual,
6. Sliding under,
7. The Antarctic plate must have once been closer to the equator,
8. Off the West Coast of North America,
9. Mountains
10. Plates move toward each other at convergent boundaries, and side-to-side at transform boundaries.