Yusef believes that his town is a very friendly community because it is situated in a valley, making it more challenging to travel in and out. He thinks the cultural characteristics arise out of natural geography. What theory is Yusef’s idea MOST aligned with?

Isolated cultural methods.

Explanation:

the proximity of water was an advantage to western europe and its culture was able to flourish as a result. trade and travel by sea were easier and safer in historical times.

1. there are no mountains to protect it from the sea

2. and its has wet cool summers and wet, mild winters.