Meanders are surface features formed by the kinetic energy of flowing water in mature river systems. In contrast, sills and dikes are intrusive volcanic features where magma solidifies within crustal cracks. Lava plateaus and plains are extrusive features formed by “fissure eruptions,” where highly fluid basaltic lava spreads over vast areas, such as the Deccan Traps in India. Because meanders rely on external atmospheric and hydraulic processes, they belong to the category of exogenic landforms, whereas the other options are products of magmatic or volcanic processes.