I think you forgot to add the options but to help you, Manhattan Project refers to a research and development project that aimed to produce the first nuclear weapons. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.
The difference between the second and first generation of Indochinese immigrants is that they refuse the French culture.
Whereas the first generation still accepted some parts of the French culture, the second generation went completely against it and rejected it.
When gold was discovered on Cherokee land in Georgia, whites poured onto Cherokee lands by the thousands, ignoring treaties, burning villages, and flaunting the U.S. Constitution and the Non-Intercourse laws passed by Congress.