जब एक तरल जमकर ठोस हो जाता है, तो उसका आयतन 4% बढ़ जाता है। जब यह ठोस वापस पिघलकर तरल बनता है, तो इसके आयतन में कितने प्रतिशत की कमी आएगी?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?