Explanation:
Jack Riis is a American newspaper reporter, social reformer and photographer.
<em><u>These tenements were for poor immigrants that just came to the United States to start a better life. These tenements were overcrowded, unsanitary, and unsafe housing. At least 18 people lived in one tenement apartment. There were only two toilets stalled on each floor and one bathtub in the kitchen of the apartment. Jacob Riis did a lot of research and reporting of the conditions that immigrants faced such as work issues and living conditions. He wanted to improve the living conditions that these individuals had and address working issues.He possessed great deals of energy which is why he was able to expose as much as he did about the slums. Jacob Riis crusaded for the establishment of settlement houses, public parks and playgrounds, and other reforms to improve the lives of those in New York City's slums.</u></em>
<em><u>Hope this helps..!</u></em>
They used fresco wall painting
Answer:
B. Radical Russian revolutionaries
Explanation:
