If new ocean crust is constantly being made, why aren't the oceans getting bigger?

According to Plate Tectonics theory, there are seven large plats on the Earth’s crust that are moving on a large scale, creating the phenomenon called continental drift. The reason why oceans do not become bigger is that the old crust is destroyed as it goes under in the subduction zones and to the mantle. According to estimates, the Atlantic Ocean is spreading, but the Pacific Ocean is not since it is undergoing subduction in many of its boundaries. 

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 ; -;