Answer:
answer & explanation below
Step-by-step explanation:
The Mandate of Heaven did not require a ruler to be of noble birth, and had no time limitations. Instead, rulers were expected to be good and just in order to keep the Mandate. The Mandate of Heaven claims that heaven (god) would bless the authority of a just ruler for the land. But would be displeased with a despotic ruler and would withdraw its mandate, leading to the overthrow of that ruler.