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I need the definitions of: Trench, Rift Zone, Oceanic Ridges, Underwater Mountain Ranges, Ring of Fire, and Fault. And what type of boundary is every single one.

Sagot :

trench-ditch

rift zone-is a feature of some volcanos

oceanic ridges-under water system

underwater mountain ranges-is a mid-ocean ridge 

ring of fire-is a area with volcanos and earth quakes

fault-planer rock fractures which show evidence of relative movement