What were problems related to the growth of urban areas?

Some of the major health problems resulting from urbanization include poor nutrition, pollution-related health conditions and communicable diseases, poor sanitation and housing conditions, and related health conditions. ... Urban dwellers also suffer from overnutrition and obesity, a growing global public health problem

Some of the major health problems resulting from urbanization include poor nutrition, pollution-related health conditions and communicable diseases, poor sanitation and housing conditions, and related health conditions. ... Urban dwellers also suffer from overnutrition and obesity, a growing global public health problem.

the answer is mass marketing.

- a government ruled by the people, or assembly. officials monarchy - a single ruler like a king. over time some city-states, like athens would change governments. what this means is that all the citizens voted on all the laws.