पर्वतपदीय मिट्टी के सम्बन्ध में कौनसा कथन सत्य है ? - Which statement is true regarding mountainous soil? - Parvatpadeey Mitti Ke Sambandh Me Kaunsa Kathan Satya Hai ? Bihar Gk in hindi, Land and Soil Is Mitti Ka Rang Gahra Bhoora Ya Peela Hota Hai question answers in hindi pdf Is Mitti Me Aadrata Adhik Pai Jati Hai questions in hindi, Know About Yah Mitti Someshwar Pahadi Ke Simavarti Vanpradesh Me Milti Hai Bihar Gk online test Bihar Gk notes in hindi quiz book Uparyukt Sabhi Kathan Satya Hain