Make sure to write at least one complete paragraph and include specific examples from the text.

Answer:

Jacob Riis reported that many tenements were built cheaply, with little concern for the people who had to live in them. Families were crowded into small rooms, often with little sunlight or fresh air, while poor sanitation and shared privies made neighborhoods dirty and unhealthy. These conditions helped disease spread and contributed to illness and death. Riis used these examples to show how urgently city housing needed to improve.