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?
Possible answers:
[i] Antarctica has always had the same climate as at present..
[ii] At some time in the past, Antarctica was a hot, dry desert..
[iii] At some time in the past, Antarctica was much warmer and wetter..
[iv] At some time in the past, Antarctica was colder and wetter than it is now..