Which progressive is associated with the items below? required coal mine owners to negotiate with their workers to avoid a strikeknown as the "trust-buster"championed the passage of the pure food and act and the meat inspection actpromoted conservation of natural resources by creating national parks

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.