Cryosol | Soil Monoliths Cryosols (or Gelisols in USDA Soil Taxonomy) have permafrost either within 1 m of the surface or within 2 m if the pedon is strongly cryoturbated in the active layer. Monoliths.soilweb.ca
Among the ancient Greeks, Homer thought the world to be flat. In contrast, Pythagoras postulated that the earth was round. A century later, Aristotle sided with the theory of the roundness of the earth.
Flat Earth (also known as the Flat Earth myth, flat-earthism, and less commonly platygeism) is the belief that the earth â which the vast, vast majority of the population imagine in their heads as this big spherical thing (or oblate spheroidal thing, pedants) is actually flat.