The excerpt is from The History of Cotton Manufacture in Great Britain, by Edward Baines.
A great number of streams . . . furnish water-power adequate to turn many hundred mills: they afford the element of water, indispensable for scouring, bleaching, printing, dyeing, and other processes of manufacture: and when collected in their larger channels, or employed to feed canals, they supply a superior inland navigation, so important for the transit of raw materials and merchandise.
According to the excerpt, in what ways did water help England's industrial boom?