भारत में प्रचुर मात्रा में उपलब्ध महत्वपूर्ण नाभिकीय ईंधन हैं ? - Important nuclear fuels available in India are abundant? - Bharat Me Prachur Matra Me Uplabdh Mahatvapurnn Nabhikiy Indhan Hain ? UP GK in hindi, उर्जा संसाधन Thorium question answers in hindi pdf Iridium questions in hindi, Know About Uranium UP GK online test UP GK notes in hindi quiz book Plutonium