Question

what was one problem caused by transportation changes in the twentieth century

Answer 1

[AI-generated answer — Bot GPT 3.5]

One problem caused by transportation changes in the twentieth century was increased congestion on roads and highways. As more people were able to afford cars and travel longer distances, traffic congestion became a common issue in many urban areas. This led to longer commute times, increased air pollution, and road safety concerns. Governments and city planners had to invest in infrastructure and alternative transportation methods to alleviate the congestion problem.