Final answer:
Chinese immigrants in the late nineteenth-century engaged in railroad construction, agricultural labor, and mining. They sought employment opportunities and endured dangerous working conditions with long hours and low wages.
Step-by-step explanation:
During the late nineteenth-century, Chinese immigrants engaged in three types of labor: railroad construction, agricultural labor, and mining. They sought employment opportunities in these trades as a means to earn income and support their families in China.
However, working conditions were often dangerous and challenging, characterized by long hours, low wages, and harsh environments. For example, railroad workers faced the risk of incapacitating injuries, miners worked in cramped and hot conditions with the constant threat of cave-ins, and agricultural laborers endured grueling work and low pay.