Answer:
I think your answer is D. Accurate calendar systems.
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Answer:
papers
Explanation:
requirements to be a citizen to be a citizen of the united states are papers
It didnt provide slave labor for the large farming estates
Invasive species of flora and fauna and communicable diseases were a byproduct of the Colombian Exchange
Answer:In politics and government, a spoils system (also known as a patronage system) is a practice in which a political party, after winning an election, gives government civil service jobs to its supporters, friends, and relatives as a reward for working toward victory, and as an incentive to keep working for the party
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