Answer:
The Columbian Exchange was a widespread exchange of animals, plants, culture, human populations, communicable disease, and ideas between the American and Afro-Eurasian hemispheres following the voyage to the Americas by Christopher Columbus in 1492. The term was coined in 1972 by Alfred W.
Explanation:
He emphasized nonviolent protest and encouraged the application of economic pressure on South Africa. He headed the Truth and Reconciliation Commission, which was intended to help heal the country by investigating human rights violations that had occurred during the apartheid era.....
I think that the answer is D
Long before europeans has devised a leap day, mayans knew that a year on earth was longer than 365 days.
the mayans knew about the sun because they're considered one of the most advanced tribe back then. Their culture studied the sun a lot, including the seasons that may have passed during the rise and fall of the sun
