INDIAN GEOGRAPHY

Detailed explanation-1: -The region of older alluvium of the Ganga plain is known as Bangar plain. In the Gangetic plains, it has a low upland covered by laterite deposits. It forms the alluvial terrace of the flood plains.

Detailed explanation-2: -An alluvial plain is a largely flat landform created by the deposition of sediment over a long period of time by one or more rivers coming from highland regions, from which alluvial soil forms.

Detailed explanation-3: -Old alluvial soil is known as Bhangar and is full of Kankars (lime nodules). The Bhangar is the older alluvium along the river beds forming terraces higher than the floodplain.

Detailed explanation-4: -Solution. Bhangar Plains are formed by the older alluviums.

Detailed explanation-5: -The correct answer is Bhangar. Bhangar-is the older alluvium along the river beds forming terraces, which are dark in colour, rich in humus content and productive. Bhangar is generally a well-drained and the most productive land of the Great Plains of India.