In the watermill, water generates...........energy, potential, chemical, Kinetic, Old windmills have ..........blades than modern ones., more, less, equal, Modern windmills are .........than old windmills., taller, shorter, ...........were used for crushing grains., Modern watermills, Modern windmills, Old watermills, .........don't have openings in their blades., Old windmills, Modern windmills, Old watermills.

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