Why did the power of chiefs decline? Their groups adopted new power structures. Their groups wanted European leaders. Their groups separated and scattered. Their groups overthrew them.

Their groups adopted new power structures.

Explanation:

In the old days, they traditional settings in a given place is done in such a way that, the people are under the authority of traditional leaders called the Chiefs. This so called Chiefs wields enormous power and determine what happens in their domain.

With the coming of the colonists, their power to make and implement policies where taken away by them. They rather take advice from the colonial masters which they implement on their area.

answer; overt behavior;

answer; silence;