Bananas are great sources of potassium, but eating one of these yellow fruits won't be enough to supply your body with the recommended daily intake (RDI) of this important mineral.
Wegener believe that there was once a single supercontinent, which he called Pangea (or Pangaea). He said that Pangea broke apart millions of years ago to form two large continents. He called the one in the northern hemisphere Laurasia and the one in the southern hemisphere Gondwanaland.lfred Wegener, who was educated to be a meteorologist and an Arctic climatologist, insisted that his theory was correct because of the evidence he saw. To support his ideas about continental drift, Wegener pointed to the similarities in the fossils of the southern continents.
The most recent of these supercontinents, Pangaea, formed about 270 million years ago and broke up about 200 million years ago. The geologic record provides evidence of older supercontinents than Pangaea and a so-called supercontinent cycle of periodic supercontinent formation and break-up.What ultimately drives the cycle is a subject of scientific debate.he geologic record provides evidence of older supercontinents than Pangaea and a so-called supercontinent cycle of periodic supercontinent formation and break-up. What ultimately drives the cycle is a subject of scientific debate.