ऊर्जा का सबसे दृश्य रूप, जिसे अक्सर आधुनिक सभ्यता में प्रगति के रूप में पहचाना जाता है, आमतौर पर क्या कहलाता है?

The arrival of which commission in India triggered widespread protests, including mass hartals across the country in 1928?

Which of the following leaders was instrumental in initiating and leading India’s struggle for independence?

Which of the following viceroys of India is associated with the 'Ilbert Bill' controversy?