Which of the following is characteristic of political borders? mountains
man-made
easily changed
determined by culture

i would say mountains

Explanation:mountains to divide to

the countries which is a key feature

not to sure thinking it would be a hope this

the answer that best explains what happened to george washington at fort necessity, pennsylvania is : washington was attacked by the french but was able to negotiate with them to peacefully end fighting. the battle took place on july 3, 1754. the battle is considered as being the start of the french and indian war.