question: Currently, Antarctica is the coldest and driest place on Earth. Paleontologists have found dinosaur fossils in rock layers below the ice. Based on this evidence, which is a reasonable conclusion about the climate of Antarctica in the past?
choices.text: Antarctica has always had the same climate as at present. At some time in the past, Antarctica was a hot, dry desert. At some time in the past, Antarctica was much warmer and wetter. At some time in the past, Antarctica was colder and wetter than it is now.
choices.label: A B C D