निम्नलिखित में से कौन सा धात्विक तत्व कमरे के तापमान पर मजबूत लौह-चुंबकत्व (ferromagnetism) प्रदर्शित करता है?

The Dandi March, also known as the Salt Satyagraha, was led by which influential leader?

Which act formally granted independence to India, marking the end of British rule?

Who was the key figure in establishing the Indian National Congress?