My theory is about continental drift. In my theory the continents moved at one part. At one point that were connected like puzzle pieces and I have found similar fossils on different continents. At first my theory didn't have a how but now I have my how. The way they moved was they went through subduction and sea floor spreading moving them apart through out the years.
Plant life is influenced by the amount of rainfall. <u>Tropical rainforests extend to the north and south of the equator</u>. In some areas, like the Sahel zone, there are large differences in rainfall every year. In the last decades droughts have caused hunger and starvation in many part of the Sahel and Ethiopia.
