Factories? Im not very sure because this is kinda vague. but hopefully you can get it!
Answer: 1) They often lived in crowded tenements- The poor living conditions of immigrants in America during the late 19th and early 20th centuries was best exemplified by Jacob Riis famous book How the Other Half Lives. This book described and included pictures of the cramped and dirty apartments that immigrants lived in.
2) They generally lived among others who shared their culture.- It was common for immigrants to live in neighborhoods where there were individuals from their same country. This resulted in the development of niche communities within big cities like New York.
Explanation: ^^
Which Countries Border Bangladesh? Bangladesh is a sovereign nation in South Asia that occupies an area of 56,980 square miles. Although it has several neighboring nations such as Nepal, China, and Bhutan, the country shares its land border with only two countries, India and Myanmar.
From :
https://www.worldatlas.com/articles/what-countries-border-bangladesh.html
Muslim, his name is Sadiq Khan