A bar graph titled Percent of U S Workforce Engaged in Farming. The x-axis is labeled 1840 to 1900 by twenty years. The y-axis is labeled Percent of Population from 0 to 80. 1840 is at almost 70 percent. 1860 is at 60 percent. 1880 is at 50 percent. 1900 is at 40 percent.
Which of these factors are responsible for the data shown on the graph? Check all that apply.

increased usage of machines for farming
decline in population
increase in industrialization
decline in common land for farming
fewer nonfarm jobs available

Question

A bar graph titled Percent of U S Workforce Engaged in Farming. The x-axis is labeled 1840 to 1900 by twenty years. The y-axis is labeled Percent of Population from 0 to 80. 1840 is at almost 70 percent. 1860 is at 60 percent. 1880 is at 50 percent. 1900 is at 40 percent. 
Which of these factors are responsible for the data shown on the graph? Check all that apply.

increased usage of machines for farming
decline in population
 increase in industrialization
decline in common land for farming  
fewer nonfarm jobs available