by rinagoldfield Thu Jul 09, 2015 2:21 pm
Thanks for your post! The third paragraph indeed states that “the Amazon lowlands are drier than uplands” (lines 37-38). These lines support choice (D) – if the lowlands are drier than the uplands, then the uplands must be wetter than the lowlands.
(A) is definitely tempting. However, this choice is too extreme. While the lowlands became desertlike during the ice age, the passage indicates that they are only “drier” than the uplands today. “Dry” does not necessarily equate to “desert.”
(B) (C) and (E) are all fairly unsupported; the distinction between low and uplands concerns the relative dryness.