What landscape region separates New York State from Massachusetts?

Drastic boundary changes can occur for all of the following reasons except for a. a shift in the way a river flows b. the collapse of a government system c. a conflict between two neighboring groups d. one country's decision to sell land to another country select the best answer from the choices provide

What causes the cyclical changes in the appearance of the moon?

When you cross a time zone going east, what happens to the time