Answer:
the decline of Europe’s large cities
Step-by-step explanation:
The first industrial revolution, generated that many processes that were manual could be produced on a large scale by increasing production and decreasing cost, making the middle class rise and grow, generated a giant advance in agriculture, this in turn generated more and more people went to the big cities to have better jobs and a better quality of life, all the big cities grew up, London, Paris, Madrid, Berlin to give an example