Answer:
When the Treaty of Tordesillas was created, the Americas were already home to many established civilizations and innumerable communities of people—from the Inuit in the far north, to the Aztecs in Mesoamerica, to the Taino in the Caribbean, to the Inca in the Andes, to the many different branches of Tupi-speaking.
Explanation:
c. take hundreds of millions of years to form.
b. are in such high demand.
d. pollute the air.
b. a new asteroid
c. a new moon
d. a new comet