Because of plate techtonics
continents
they can increase or move the size of the continents
Plate Activity causes it to move.
from north to south
The continents moved because of the tectonic plates of earth that they rest on.
The continents move due to plate tectonics, which is the movement of the Earth's lithosphere plates on the asthenosphere beneath them. This movement is caused by convection currents in the mantle, leading to the drifting of continents over millions of years.
by how the nature moved
Continental drift.
to work
The idea that continents move slowly across the earth's surface is called the continental drift.
The continents are part of Earth's tectonic plate system, when the plates move the continents move with them. The plate movement is driven by slow mantle convection driven by the heat in Earth's core.
The reason continents move is because in the earth there are plates. The plates move because in the upper mantle (lithosphere) is hot liquid and it shoots up and shift the plates.