The areas in which new sea floor and oceanic lithosphere are formed are called centers, and the areas where older oceanic lithosphere is recycled as it descends and melts are called zones.

Spreading, Subduction

Explanation:

The areas in which new sea floor and oceanic lithosphere are formed are called spreading centers, and the areas where older oceanic lithosphere is recycled as it descends and melts are called subduction zones.

for e2020. the answer would be some directions from the mountain range so we can find mt. whitney. to locate which direction is north, you should use a   compass. this would not only find mt. whitney, but also becuase of this long paragraph you would get points because it's not like anyone actually reads your work becuase once they read the first sentence it sounds dumb enough to not read becuase i'm not good at answering this but the answer is compass for your benefit.

for e2020 ; -;