-It is not true that the Great Wall of China is the only man-made structure that can be viewed from space - many man-made objects, including the Dutch polders, can be viewed from space.
-Due to earth's gravity it is impossible for mountains to be higher than 15,000 metres.
-Plates carrying the continents migrate over the earth's surface a few centimetres (inches) per year, about the same speed that a fingernail grows.
-The tallest nation in the world is the Watusis of Burundi.
3 years ago