Answer:
americans pushed westward taking lands past the Appalachians and towards the west coast
That is because Californian state law allows sales of Medical Marijuana, and they can't prove that the sales were illegal and that there were problematic things included because it's legal in the state.
The main reason why the Framers of the Constitution included the amendment process was because "A.)They wanted to provide a way to change the Constitution as the country changed," since they new that a "rigid" document would lead to disaster.