<span>Letter S displays the word meander because letter-S channel pattern fashioned in alluvial materials by erosion of the concave bank , which is free to shift its location and adjust its shape as a part of a stage in migratory movement of the channel as a whole down an erodible, alluvial valley. A meander is characterized by curved flow patterns and alternating shoals and bank erosion.</span>
This breed is called metamorphic rocks - rocks formed in the Earth's crust as a result of metamorphism, ie the change of sedimentary and igneous rocks due to changes in physical and chemical conditions
