Four inventions of the agricultural revolution include
following: the steel plow, the mechanical reaper, the sewing machine and the
cotton gin.
Agricultural
revolution (18th century - 19th century) is an era which helped the people in
the innovation of machines and technology to accommodate a bigger and faster productivity
in agriculture.
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Answer: increasing efficiency in telecommunications.
Explanation: Concerns about air pollution led to stricter environmental regulations. Union membership increased as workers sought better pay and conditions.
