GEOLOGY

Detailed explanation-1: -Wegener concluded that they formed as a single mountain range that was separated as the continents drifted. Figure 2. The similarities between the Appalachian and the eastern Greenland mountain ranges are evidences for the continental drift hypothesis.

Detailed explanation-2: -The Appalachian Mountains were just like mountain ranges in eastern Greenland, Ireland, Great Britain, and Norway. Wegener concluded that they formed as a single mountain range. This mountain range broke apart as the continents split up. The mountain range separated as the continents drifted.

Detailed explanation-3: -Similar rock types were used to support the continental drift hypothesis because the Caledonian mountain range in northern Europe and the Appalachian Mountains in eastern North America would fit together and form one mountain range if the two continents were places side by side.

Detailed explanation-4: -Fossil Evidence One type of evidence that strongly supported the Theory of Continental Drift is the fossil record. Scientists have found fossils of similar types of plants and animals in rocks of similar age. These rocks were on the shores of different continents. This suggests that the continents were once joined.

Detailed explanation-5: -Wegener discovered that the Appalachian Mountains of the eastern United States, for instance, were geologically related to the Caledonian Mountains of Scotland. Pangaea existed about 240 million years ago. By about 200 million years ago, this supercontinent began breaking up.