पृथ्वी के कुल सतह क्षेत्रफल के लगभग कितने प्रतिशत भाग पर महाद्वीपों/स्थल का विस्तार पाया जाता 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?