Why did shi huangdi tear down the walls of chinese kingdoms? a. he needed building materials for the great wall. b. he wanted to ensure the nobles could not defend against himc. the walls did not meet his standard specificationsd. he wanted the walls rebuilt with stronger materials i need to finish this test asap. and would anyone be willing to me answer 3 or 4 essay let me know . by the way, anyone that the most i will mark the brainliest: )

Am I too late to answer it if yes sorry, if no The answer is B.

a because i tried to vote with just my college id and the answer was no

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.