Science Contrast mid-ocean ridges and trenches. Asked by arwen46 12 years ago 2/2/2013 5:05 AM Last updated by anonymous 12 years ago 2/3/2013 8:03 PM
A mid-ocean ridge is an area in an ocean basin where new ocean floor is formed however a trench is where one crustal plate sinks beneath another and creates a long, narrow, seep-sided depression.