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.
In 1915, in the first edition of his book, Die Entstehung der Kontinente und Ozeane, written in German (the first English edition was published in 1924 as The Origin of Continents and Oceans, a translation of the 1922 third German edition), Wegener drew together evidence from various fields to advance the theory that there had once been a giant continent which he named Urkontinent  (German for primal continent, analogous to the Greek Pangaea, meaning All-Lands or All-Earth).