How did people from scandinavia happen to settle in the northern plains?

Which of the following descriptions is an example of the curtual diffusion

States' compliance with the native american reservation treaties drawn up by the federal government for the native american nations is:

Historians believe that animals drawn in cave paintings during the paleolithic era could have represented each of the following except a a. successful hunt b. domesticated pet c. god that was worshipped d. way to obtain an animal's spirit select the best answer from the choices provided