The Ganga Plain can be best described as a:
Geosyncline means a huge depression. Ganga Plain can be best described as a geosyncline. Peneplain means a more or less level land surface produced by erosion over a long period. Pediplain is an extensive plain formed in a desert by the coalescence of neighbouring pediments. Karst plain can be best described as limestone plain.
This question is a part of GKToday's Integrated IAS General Studies Module