Talk to some old residents in your region and write a short report on the changes in irrigation and changes in production methods during the last 30 years.
class 9th chapter 1 economics
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Many technical changes r occurred. Agricultural is some how joining with technology as many machinery r used in behalf of manual labor The machinery were tractors, Thresher , winnower , Cutter . And the various irrigation system were drip irrigation , sprinkle irrigation, and many more...
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