Which dynasty is the mandate of heaven to justify its replacement of the previous dynasty

The Zhou Dynasty leaders claimed to have the Mandate of Heaven, letting them take the Shang Dynyasties power.

branches of government. to ensure a separation of powers, the u.s. federal government is made up of three branches: legislative, executive and judicial. the legislative branch is made up of the house and senate, known collectively as the congress.

answer; ///the correct answer is,by introducing a merit system of nobility.