Q. Which soil type is most widely found in the plains of Bihar?
Answer:
Gangetic Alluvium
Notes: Gangetic Alluvium covers most of Bihar’s plains, deposited by the Indo-Gangetic-Brahmaputra rivers. It is highly fertile and supports major crops like rice, wheat, and sugarcane. Other soils like Terai, Piedmont Swamp, and Balthar are present in limited regions.