भू-गर्भ में जिस स्थान पर भूकंपीय तरंगों की उत्पत्ति होती है, उस स्थान को क्या कहते हैं?

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?