यदि पृथ्वी के चारों ओर कोई वायुमंडल नहीं होता, तो पृथ्वी की सतह का औसत तापमान क्या होता?

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?