Answer: New technologies make physical features less of a challenge when creating boundaries. Many new technologies have been created to overcome these present barriers. For example a mountain was hard to get past. Now we have helicopters that allow us to go over the mountain which makes these boundaries less of a challenge.
Step-by-step explanation:
Hello freckledspots.
Don't worry I'm not THAT bad. *If you want me to delete this part let me know*