Metalworkers in ancient india created so pure it has barely rusted after 1.600 years.
a. steel
b. iron
c. bronze
d. gold

If the imperial dynasty had continued to rule china, it is most likely that a) the economy would have improved rather than weakened b) european nations would have gotten more of a foothold in china c) revolutionary groups would not have gained any power in the country d) communism would not have received support among the poor