निरंतर भार और स्थिर उच्च तापमान के कारण समय के साथ सामग्री के स्थायी विरूपण (permanent deformation) को किस रूप में जाना 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?