When Europeans arrived in North America, the native (Indian) population numbered in the millions. By the end of the 19th century, the Indian population was less than 300,000. This fact alone indicates that the major form of ethnic relations between Europeans and Indians was.

Annihilation

Explanation:

When Europeans arrived in North America, the native (Indian) population numbered in the millions. By the end of the 19th century, the Indian population was less than 300,000. This fact alone indicates that the major form of ethnic relations between Europeans and Indians was Annihilation.

The native population before their contact with the Europeans according to various statistics varying from about one million to ten million Indians. However since the first contact was made when Juan Ponce de Leon landed in La Florida in April 1513 follows by other explorer to the time of  Christopher Columbus, the population of the native keeps decreasing and decline in size due to their contact with the Europeans through epidemics brought by the Europeans, the various war waged against them for their lands and resources ,displacement from their land  and resources, slavery, voluntary migration to area not conducive to their living etc. All this leads to rapid decline in the population

answer; dead end or culdesac;