The majority of transform boundaries are found:

Transform boundaries are places where plates slide sideways past each other. At transform boundaries lithosphere is neither created nor destroyed. Many transform boundaries are found on the sea floor, where they connect segments of diverging mid-ocean ridges. California's San Andreas fault is a transform boundary.

Ithink it is space that makes up 70 percent

Answerscripps institution of oceanography; i believe this is correct plz check first good luck;