What you have learned to identify reasons that governments create regulations in mixed market economies

What impact did improvements in farming technology near the end of the nineteenth century have on the american economy? a. more energy was needed to power equipment, creating the renewable energy industry. b. less labor was necessary on farms, leading workers to pursue other jobs. c. less money was invested in farming as many locally owned farms went bankrupt. d. more demand for agricultural products reduced the price of food and animal products.

What percentage of roads in germany have no speed limit?

Me with this psychology homework, i’m struggling with it.