Answer:
By trying to help them, and spread positivity, and just be kind to everybody. :D
Explanation:
Hello There! ^_^
Your question: What were the three main Indian groups before European explorers arrived..?
Your answer: The Mayan, the Aztecs and the Incas were the three main Indian groups before European explorers arrived.
Hope this helps!
i think the answer would be "in both eastern and western hemispheres"
