Which describes a geographic reason for the differences in the way native american groups lived?
a.
native american groups chose where to live based on the climate and terrain they preferred.
b.
as they came in contact with people in different parts of the continent, native americans copied what they saw.
c.
as people spread across north america, they adapted to the different kinds of terrain and climate they found.
d.
tall mountains and wide rivers prevented any contact or trade between native american groups.

First,, of all, you must know that the Native Americans through scientific studies showed that they originally came from Asia through the Bering Strait (The small patch of ocean between Alaska and Russia)

So when they came to North America, they separated and migrated throughout the continent. So as they migrated, they had to adapt to various enviroments and they did not have modern technology to see where the climate for each area is to decide to move there (although they may have moved around a bit to adapt better if they were nomad tribes) 

So as they spread, they adapted to different kinds of terrain and climate they found so people who might live in the midwest might be nomads living in Tepees and hunting animals such as buffalo while tribes living in the south might live in mud huts and hunt desert animals while tribes living in what is now Alaska might live in igloos and live off arctic animals such as seals, polar bears, and whales.