What are three examples of rivers or other topographic features ...

[appyboo]

What are three examples of rivers or other topographic features that have been used to delineate political boundaries in North America?
 
  What will be an ideal response?

Question 2

What is the name of at least one major river system that flows into the Arctic, Pacific, and Atlantic Oceans?
 
  What will be an ideal response?

[ilianabrrr]

Answer to Question 1

The Appalachian Mountains
The Bitteroot Mountains
The St. John and St. Croix Rivers
The Mississippi River

Answer to Question 2

Rivers that flow into the Arctic: Mackenzie
Rivers that flow into the Pacific: Sacramento, Fraser, Columbia
Rivers that flow into the Atlantic: Hudson, Delaware, Susquehanna, St. Lawrence, Charles, Connecticut, Potomac

[appyboo]

TYSM

[nanny]

Thanks for the timely response, appreciate it