im sorry for being such a to the world, i want to give back, anyone that answers gets 50 free points :(

Which event had the greatest impact on culture of south america

In what three areas is the us leader?

Plz answer ! find the alps. what countries and country borders intersect this major mountain range? which borders seem to be defined by the edges of the mountains? which borders seem to be defined by the edges of the mountains? which borders cut across the mountains?