How did tenements contribute to the spread of disease in eastern cities? Tenements were overcrowded dwellings that lacked proper sanitation.
Tenements were constructed from old ship and factory parts that contained toxins.
Tenements were filled with immigrants who brought new diseases from Europe.
Tenements were used to store grain that was infested with vermin.

Living conditions in many of the city's tenements did endanger the health of residents. ... of the ideas that would influence the emerging field of public health. ... De Wolf's methods for preventing the spread of contagious disease ... of recently arrived Polish, Greek, Italian, and Eastern European families.

answer; ///(c) i believe that the correct answer is ethnic relations bear many similarities across different global; good luck

the answer is: c. c.it limited the president’s power to start wars.

the war powers resolution of 1973 requires the president to notify the congress whenever the president wanted to order a military operation to other countries within 48 hours. if after being reviewed the congress disagree with the proposal, that the president will be banned from ordering the operation.