वह न्यूनतम तापमान जिस पर कोई पदार्थ आग पकड़ता है और जलना शुरू करता है, 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?