Original sentence: The economy was widely based on specialty agriculture, oil, tourism, shipping, film, and after 1940 advanced technology such as aerospace and electronics industries - along with a significant military presence
Edited sentence: As automobiles developed roads had to be built to accommodate the ever increasing number of automobiles.At the turn of the century, electricity was becoming an ever increasing use in an ever increasing myriad of uses.Fortunately, California had large number of potential hydroelectric sites and plentiful oil needed to produce ever more electricity.Fortunately, California had the oil needed both for gasoline for its cars and asphalt for its highways.Massive state water projects, nearly always paid for by voter approved bonds, helped solve one of California's worst problems of water not being where it could do the most good.S.. At the turn of the century nearly all travel was either by railroad or ship with some excursions on stage coaches for cities not near a railroad.The economy was widely based on specialty agriculture, oil, tourism, shipping, film, and after 1940 advanced technology.This water was used together with new versions of oranges and refrigerated railroad cars to establish California oranges as a new "universal" product throughout the U