Never underestimate the power of a long deep breath - Quotes

Rapid deep breathing is

Yoga trainees perform rapid deep breathing in order to

Bleaching powder loses its power on keeping for a long time because

A pump can throw up 10 quntals of coal per hour from a coal mine 120m deep. Calculate the power of the engine in watt assuming that efficiency is 80% .

After taking a long deep breath we do not respire for some seconds due to