Final answer:
During the Industrial Revolution, Cholera and Tuberculosis were widespread due to poor living conditions and overcrowding in cities.
Step-by-step explanation:
The two diseases that affected people during the Industrial Revolution were Cholera and Tuberculosis. The rapid urbanization and industrialization led to overcrowded cities with unsanitary conditions, enabling the spread of these illnesses. Cholera, a waterborne disease causing severe diarrhea and dehydration, thrived in the cities' dirty water supplies. Tuberculosis, an airborne respiratory illness, was exacerbated by the overcrowded and poorly ventilated living conditions of the industrial cities. Both diseases caused high mortality rates, particularly amongst the lower socioeconomic class, who lived in the worst conditions.