based on the graph which industry's decline would hurt the southern economy the most

iron
agr
manu
railroad

Railroad.

To determine which industry's decline would hurt the southern economy the most based on the graph, you would need to carefully analyze the data provided. Here are the steps you can follow:

1. Look at the graph: Inspect the graph and examine the trends and patterns for each industry mentioned (iron, agriculture, manufacturing, and railroad).
2. Identify the decline: Identify which industry is showing a significant decline or decrease in the graph.
3. Consider the economic impact: Assess the potential consequences of a decline in each industry on the southern economy. Think about factors such as employment, revenue, and overall economic vitality.
4. Compare the impacts: Analyze and compare the potential effects of the decline in each industry. Consider aspects like the number of jobs lost, the decrease in revenue, and the overall economic dependence on each industry.
5. Determine the most significant impact: Based on your analysis, identify which industry's decline would have the most severe consequences for the southern economy.

By going through these steps, you should be able to arrive at a conclusion regarding which industry's decline would hurt the southern economy the most according to the information provided in the graph.

To accurately determine which industry's decline would hurt the southern economy the most based on the graph, I would need to have access to the graph you are referring to. Please provide the graph or describe its content so that I can assist you further.