UPSC 2014 CDS II GK Paper

Falls are followed by meander followed by oxbow lake and thendelta. Waterfalls develop when a change of lithology (rock type) takesplace along the river’s course. Oxbow lakes are an evolution ofmeanders that undergo extensive deposition and erosion. Deltas aredepositional land forms found at the mouth of a river where the rivermeets a body of water with a lower velocity than the river. Meandersare bends in a river that form as a river’s sinuosity increases. Thesinuosity of a river is a measurement of how much a river varies from a straight line.