Anthropologists have been successful in uncovering evidence of vast trade networks done entirely on foot throughout the entire continent of North America that long preceded the arrival of Europeans. This movement and exchange of material goods and cultural pieces supports which of the following concepts?
diffusioneffusion

How does cloud cover affect how much infrared light is reflected back to the ground?

The civil war has been given many names: the war between the states, the war against northern aggression, the second american revolution, the lost cause, the war of the rebellion, the brothers' war, and the late unpleasantness. famous poet walt whitman called it the war of attempted secession. confederate general joseph johnston called it the war against the states. by whatever name, it was unquestionably the most important event in the life of the nation. which name do you feel best fits this war from the list above? maybe you have another name you think would be even better? give the name you feel fits this war best, and in a sentence or two, explain your reasoning.

Explain in detail the events that led to the fall of the soviet union. explain the importance of the foreign policy shift from brinkmanship to détente during the cold war.be sure to include evidence to support your answer describe the challenges to nation-building that exist in africa today .