A bar graph titled Number of Deaths in U S Mining Industry. The x-axis is labeled from 1910 to 1970 by decades. The y-axis is labeled from 0 to 30,000. The 1910's had 25,000 deaths. The 1920's had under 25,000 deaths. The 1930's and 40's had over 10,000 deaths. The 1950's had 5,000 deaths. The 1960's and 70's had under 5,000 deaths. Which claim is supported by evidence presented in the graph? Miners’ wages increased, and their working conditions improved, as the 1900s progressed. The safety of the mining industry improved as the 1900s progressed. Miners’ wages declined as the 1900s progressed. The safety of the mining industry declined as the 1900s progressed.