Rainfall with an intensity of 20 mm/hr occurred over a watershed of area 100 hectares for a duration of 6 hours. The measured direct runoff volume in the stream draining the watershed was found to be 30,000 m3. The total precipitation depth not available to runoff (representing infiltration and losses) in this case is:

Which Indian independence movement leader was primarily known for his philosophy and practice of non-violent civil disobedience?

Who gave the call for 'Do or Die' during the Quit India Movement in 1942?

Which of the following revolutionary pairs were imprisoned together in Cellular Jail and faced harsh conditions, contributing significantly to the Indian independence movement?