Some possibilities why two continents that may once fit together have either gaps or overlaps?

Two continents that once fit together may exhibit gaps or overlaps due to tectonic processes such as plate tectonics, where continental drift causes them to move apart or collide over geological time. Erosion and sedimentation can create gaps, while tectonic activity, such as subduction or uplift, can lead to overlaps. Additionally, changes in sea levels and the formation of ocean basins can alter the relative positions of continents, further contributing to these discrepancies.