The theory that the Earth's surface is made up of huge plates that have moved very slowly during geological history, and continue to move, thus changing the position of continent and oceans.
(the Earth's surface; is made up; of huge plates) (huge plates; have moved very slowly; T:during geological history) (The theory that the Earth's surface is made up of huge plates that have moved very slowly during geological history, and continue to move; changing; the position of continent and oceans)
the Earth's surface huge plates The theory that the Earth's surface is made up of huge plates that have moved very slowly during geological history, and continue to move
is made up have moved very slowly changing
of huge plates
T:during geological history
the position of continent and oceans