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Answer: Amazon River
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Answer:
A(survival of the confederacy
Explanation:
took the assignment.
Answer:
I think Barack Obama will be remembered as the first African-American ever to be elected president of the United States.
“A calendar was needed in the first place to track seasons. ... The progression of seasons ensured that there were 12 months in a year. Since the lunar cycle is shorter than 30 days, an extra month was added once every few years to keep calendars in sync with the seasons.” Need more explanation? Can you please mark me Brainliest?