Alfred has been in warm area your answer
Terms that are asked to be used in the response are bolded;
Ocean ridges and trenches are related in a few ways. One of the ways is being created from the movement of tectonic plates on the mantle when they diverge and converge. When tectonic plates diverge they "pull apart" and create trenches. When they converge they "push together" and create ridges, subduction happens here. The tectonic plates move on the mantle of magna from convection currents creating these different boundaries.
Have a nice day!
<em>Note: Please keep in mind that if you would like to use my work you must reword it or give a proper citation, thanks.</em>
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.
- Heather
In place of clicking on the touchpad for the Cases, I would boost
in response to the visual incitements that would be linked with a reflex hammer
with an accelerometer; the reflex hammer would move appropriately to the carrying
of the picture on the screen by a programmed mechanical device. I wouldn’t use
the reflex hammer’s sound however; it’s purely there to compute my reaction
times (time of highest acceleration of movement of the reflex hammer deducted
by time of reflex) instead of using the computer’s software at figuring
reaction times, since I think the software is defective.