I’m pretty sure it’s systematic agriculture
Answer:
Ivan III (1440-1505), called Ivan the Great, was grand duke of Moscow from 1462 to 1505. He completed the unification of Russian lands, and his reign marks the beginning of Muscovite Russia. ... The accomplishment for which Ivan is best known is the consolidation of Muscovite rule.
Explanation:
Okay so
14. I would say the answer to this one is: A new wave of nationalism.
15. The answer to this one is: Expansion of Slavery.
16. I think it is: The Taiping Rebellion.
I hope this helps you.
The system of checks and balances makes sure that one branch of gov. Doesn't get more powerful than the other by giving different powers to different branches. Like a certain branch can't do something without the "thumbs up" from the other branch. For example, the Executive Branch can veto bills from the Legislative Branch, but the Legislative Branch can override the veto. Hopefully that helped!!