Theo Rodrigo’s book Dust onto Dust is a historical narrative about the 1930s Dust Bowl. The author describes how a combination of poor farming techniques and a lack of rain created a disaster for farmers in the Great Plains region of the United States. Farmers who lived during that period share their hardships and how they changed their farming techniques in response to this environmental disaster. Rodrigo also includes many pictures and maps to help readers understand his ideas. Which sentence should be removed from the summary?