Which factor was the most significant force in causing the changes between 1914 and 1919 as shown on the two maps?

Hi. I am not seeing the map nor any details such as the choices of your question. I went ahead to look any similar questions that would show me the maps and the choices. The answer would be: treaties were signed at the end of World War I.

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.