किस पर्वत श्रृंखला को प्रसिद्ध रूप से 'उच्च एशिया की रीढ़' (Backbone of High Asia) कहा जाता 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?