निम्नलिखित में से किसने यह कहा था कि 'जनसंख्या ज्यामितीय श्रेणी में बढ़ती है, जबकि खाद्य उत्पादन अंकगणितीय श्रेणी में बढ़ता 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?