A IDEA IN WHICH THE LITHOSPHERE IS BROKEN UP INTO PIECES THAT MOVE.

FLOW THAT TRANSFERS HEAT

THE PULL OF GRAVITY ON A PLATE THAT IS BEING SUBDUCTED

NEW CRUST THAT FORMS AT DIVERGENT PLATE BOUNDARIES

PLATES MOVE AWAY FROM EACH OTHER

LAND FORM THAT RESULTS FROM A DIVERGENT PLAYE BOUNDARY

UNDERWATER LAND FORM THAT IS CAUSED BY ADIVERGENT PLATE BOUNDARY

FRAGMENTS OF THE LITHOSPHERE MOVE TOGETHER AND COLLIDE.

ONE TECTONIC PLATE MOVES UNDER ANOTHER TECTONIC PLATE AND SINKS

ANY LONG, NARROW, STEEP-SIDED DEPRESSION IN THE OCEAN BOTTOM

PUERTO RICO TRENCH

A FAULT THAT MOVES A MID OCEAN RIDGE IN OPPOSITE DIRECTIONS

SEA FLOOR SPREADING