Question

Which of these is the location where sea floor spreading occurs?

abyss

guyot

ocean trenches

mid-ocean ridges

Answer 1

Ocean Trenches... I believe 

Answer 2

Sea floor spreading occurs in mid-ocean ridges

Step-by-step explanation:

mid-ocean ridge: A location where sea floor spreading occurs. The release of magma at these active volcanic sites forms new rocks and rows of mountains.