Why does the effect of rising global temperatures in the ocean have such a broad effect on earth? a. as water cools, it can hold less carbon dioxide, so more co is released into the atmosphere, where it is a greenhouse gas. b. as water warms, it can hold less carbon dioxide, so more co is released into the atmosphere, where it is a greenhouse gas. c. as water warms, it can hold more carbon dioxide, so less co is released into the atmosphere, where it is a greenhouse gas. d. there is no overwhelming effect due to rising global temperatures.

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.