Checks-
Examine (something) in order to determine its accuracy, quality, or condition, or to detect the presence of something.
Balances-
An even distribution of weight enabling someone or something to remain upright and steady.
In 1600s the planter class increasingly relied on African slaves for labor majorly because slaves were offering cheap labor now that the planters didn't have to pay for this form of labor. This led to most of them foregoing traditional indentured servants who would be paid for their labor and instead opted for African slaves.
Realpolitik.
.
It's a theory where politics are based on practical matters rather than theory/ethics.
<span>The Vice President of The United States of America is the only elected officer in the federal government who has duties in two branches of the government. The Vice President serves the legislative branch as President of the Senate. The Vice President's duty in the executive branch is to take over the role of President if the President can no longer serve.</span>