What physical process changed the geological area and composition of the earths oceans shown in the two pictures below?

The geological area and composition of the Earth's oceans have been primarily altered by tectonic processes such as plate movements, which can lead to the formation of ocean basins and the reshaping of Coastlines. Additionally, volcanic activity contributes to ocean chemistry by releasing minerals and gases, while erosion and sedimentation from land also play significant roles. These processes, combined with climate changes over geological time scales, have continuously modified the characteristics of the oceans.