Which of the following characteristics best describes the amazon rainforest? a. it is located in the northern section of the longest mountain chain in the world. b. it has the most concentrated biodiversity in the world. c. it is home to over 160 species of butterflies. d. it is the driest region in the world.

Which of the following would not be considered a geographic impact on the history of middle and south america? a. the relative geographic isolation of the americas meant that they would be more susceptible to european diseases. b. ernesto “che” guevara's trip throughout south america inspired him to become a revolutionary. c. the tropical climate of north america has encouraged many south american countries to produce goods there. d. the proximity of the united states to middle and south america has strengthened its relationship to the region.