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!
A. Korea the U.S tried to stop the spread of communism in Korea. It was divided to the US and the Russians. <span />
The huge volcanic plateau that extends through most of southern India is known as the Deccan Plateau.
This a triangular shaped plateau that extends in southern India, it has elevation of 100 meters on the north and gets higher and reaches up to 1000 meters on the south. It represents a remnant of an ancient volcano.
The winkel triple because all others arnt good in this situation