उस पदार्थ को क्या कहा जाता है जो विद्युत धारा या ऊष्मा को अपने से होकर आसानी से प्रवाहित होने देता है?

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?