बिहार राज्य के दक्षिणी गंगा के मैदान में निम्नलिखित में से कौनसी मिट्टी नहीं पायी जाती है ? - Which one of the following soils is not found in the southern Gangetic plain of Bihar state? - Bihar Rajya Ke Dakshinni Ganga Ke Maidan Me NimnLikhit Me Se Kaunsi Mitti Nahi Payi Jati Hai ? Bihar Gk in hindi, Land and Soil Karail - Kaival Mitti question answers in hindi pdf BalThar Mitti questions in hindi, Know About Laal Mitti Bihar Gk online test Bihar Gk notes in hindi quiz book Naveen Jalodh Mitti