Why was crossing the Great Plains time consuming and dangerous? A. The environment was harsh and settlers could be attacked by Native Americans along
the way
B. Fires often broke out thanks to the thousands of square miles of dry grasses, so
settler's campfires often ended up out-of-control
C. Most of the travel happened in the winter, when farmers were between growing
seasons, and blizzards caused wagons to become frozen
D. Unmarried women had to be heavily protected from other settlers, resulting in a slow
pace

answer-the island had airfields that the u.s. military needed.

in the 1800s, chinese workers migrated to the united states, first to work in the gold mines, but also to take agricultural jobs, and factory work, especially in the garment industry. chinese immigrants were particularly instrumental in building railroads in the american west, and as chinese laborers grew successful in the united states, a number of them became entrepreneurs in their own right. as the numbers of chinese laborers increased, so did the strength of anti-chinese sentiment among other workers in the american economy. this finally resulted in legislation that aimed to limit future immigration of chinese workers to the united states, and threatened to sour diplomatic relations between the united states and china.

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