How did Qin Shihuangdi unite the states of northern China? He conquered the other six states and ended the wars.
He staged a revolution and overthrew the emperor of China.
He formed alliances with the other states and was elected leader.
He connected the states by expanding trade routes and improving roads.

answer; exploratory;

answer; jung;

a family can go through many changes which would make it complex. having children can cause a change and increase the complexity. this would change the distribution of authority and management, as the older siblings will at some point be in charge of the younger ones, and discipline must be distributed when they get in trouble.