UPSC 2017 CDS I GK Paper

Statement (d) with regard to volcanoes is not correct. Radial drainage pattern, also known as centrifugal pattern, is formed by the streams which diverge from a central higher point in all directions. It is obvious that dome structures, volcanic cones, batholiths and laccoliths, residual hills, small tablelands, mesas and buttes, and isolated uplands favour the development of ideal radial pattern. So, statement (d) is not correct. Statements (a), (b) and (c) are factual statements and are correct.