Hello! I have a geology question; a subject which I know next to nothing about. Regarding tectonic plates, I heard someone suggest that when there is oceanic trench formation, it is always accompanied by mountain/hill formation. The websites I have looked at say that there MAY be mountain formation when there is ocean trench formation, but none that state that is it is inevitably so. Is anyone knowledgeable in this area? I would really like to know if these two things are invariably linked. Thanks in advance, Nobahar.