What significant challenge did cities face as a result of rapid industrialization in the 1800s?

There were many challenges that cities faced as a result of rapid industrialization in the 1800s. With industrialization came the establishment of factories and industries in cities. These led to high levels of pollution and to a reduction in the space that was meant to house residents. Moreover, as people moved to cities to work in these industries, the cities became overpopulated, and the number of poor or unemployed people grew.

answer; ///i believe that the correct answer is refrigerants,(like r12) and aerosol

it's a secular holiday. it is and was a custom developed to recognize the ending of a time and a wish for a good future. the kind of kiss you exchange, if you are single, is intended to predict what kind of year you will have in the coming year.

it is saying good bye to the last year with all its ups and downs, and hello to the new year, with all its hopes and dreams.