Ocean currents are caused by the wind, the solidity dissimilarity in the masses of water created by the salinity and climate gravitational pull, difference, and or natural dissasters such as storms, earthquakes, etc. Currents in the surface of the ocean are sometimes fueled from the suns energy.
The physical map shows physical features, such as lakes, rivers, mountain ranges, deserts, etc. Political maps show countries and capitals, along with their borders.
