What are three different features or observations that have been made that support/reflect the presence of subduction zones?

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.

answer at the divergent plate boundary in the middle of the ocean;