What caused the Warring States period?

A. The Shang emperor lost the Mandate of Heaven.

B. Daoism started to take hold.

C. Nobles stopped supporting the emperor.

D. The ruler of the Xia dynasty died.

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.

b. major john c. frémont led a rebellion called the bear flag revolt.

explanation:

during the bear flag revolt, from june to july 1846, a small group of american settlers in california rebelled against the mexican government and proclaimed california an independent republic. the republic was short-lived because soon after the bear flag was raised, the u.s. military began occupying california, which went on to join the union in 1850. the bear flag became the official state flag in 1911.

silk

indigo  

rice

all the other answers are wrong