The heads of the executive departments of the federal government * (Definition please )

The department heads advise the president and work to carry out the administration policy agenda, though members of the Executive Office of the President have supplanted that role since the late 20th century.

Explanation:

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mali had been a state inside of the ghanaian empire. after ghana fell because of invading forces and internal disputes, mali rose to greatness under the leadership of a legendary king named sundiata, the "lion king." the songhai empire, already weakened by internal political struggles, went into decline.