Which type of ecological succession is driven by internal biotic factors where the living organisms themselves modify the environment (e.g., trees creating shade or plant decay enriching soil)?

Which movement aimed to promote Khadi, a hand-spun and handwoven cloth native to India?

Who were prominent leaders associated with the initial phase of the Telangana Rebellion (1946-1951) against the Nizam's rule and feudal landlords?

What was the immediate trigger for the Revolt of 1857?