Why did railroad leaders consolidate their lines in the 1800s

answer; ///(1) blank; henry clay; (2) blank; secretary of state; (c)is your answer; ///good luck

you will need these

an outline of all three paragraphsan identification of the historical era that you are writing aboutan explanation of the term mass productiona description of two ways new technology affected industrya conclusion that shows how new technologies allowed industrialization to grow