giving brainlest ! 1) what did john deere invent in 1837? a. mechanical reaper b. breach-loading rifle c. steel plow  d. telegraph 2) what was the job of a muckraker during the period of industrialization in the united states? a. to clean out the sewer b. to till the soil c. to publicly expose societal flaws d. to campaign for political office 3) which of the following was not a reason for labor strikes at the turn of the century? a. poor wages b. 12-hour work day c. lack of child labor laws d. welfare