Why do scholars study american indians by language group? why were there so many american indian languages? plaese

Look at this photograph taken during the battle of guadalcanal

The superiors and subordinates of fbl inc., a swedish furniture manufacturing company, share a warm camaraderie. what kind of hofstede's value dimension does this exhibit? a. a high power distance index b. a low power distance index c. a high uncertainty avoidance index d. a low uncertainty avoidance index

Why did the collapse of the soviet union and the power vacuum in the balkans lead to bosnian genocide?