Why was Nationalism one of the main causes of World War I?

What is the ancient chinese belief that god chooses the emperor?

What are the biggest challenges facing the average american citizen today? explain.

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