Homework Help

Why are ocean trenches the deepest parts of the ocean?

user profile pic

navtoj | Student, Grade 10 | eNotes Newbie

Posted January 2, 2011 at 4:31 AM via web

dislike 0 like

Why are ocean trenches the deepest parts of the ocean?

1 Answer | Add Yours

user profile pic

ndnordic | High School Teacher | (Level 2) Associate Educator

Posted January 2, 2011 at 9:11 AM (Answer #1)

dislike 0 like

A trench in general results when you dig a hole in the ground which extends for some distance. Imagine you are on top of the grand canyon looking down. What you are seeing is a huge trench that is lower than the surrounding ground.

Now imagine that you are on the bottom of the ocean and the bottom is all flat. Then you would be at the deepest part of the ocean. Now imagine that you have a gigantic plow that can start digging into the bottom of the ocean floor. As you dig you will go lower and lower below the surface of the ocean. In other words you will be going deeper and deeper below the ocean's surface.

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes