Hello There!
To prevent the spread of communism in Southeast Asia is why did President Kennedy get the United States involved in the Vietnam War so the reason was the usage of containment policy.
Answer:
Climate change, Availability of resources
Explanation:
1. Soon enough when the climate on the planet started to become more arid and become too hot, so humans started to migrate from Africa.
2. People started to move away to the places where resources were available.
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: ^^
They looked for different routes because when they took the normal way, they would get robbed by pirates or sometimes they didn't reach their destination.