We live on the planet earth, which is the only planet orbiting the sun with a life on it. the largest part of it is occupied by the waters of the world ocean. if we look on the map of the world we can see that there are six continents, which look like big islands. the largest continent is called eurasia. it covers over 53 million square kilometers and is washed by all four world oceans. the highest mountain, the deepest lake, the largest peninsula are all situated in eurasia. the second largest continent is africa. it covers more than 30 million square kilometers. it is washed by two oceans - atlantic and indian, and two seas - red and mediterranean. the continent has many archipelagos, including madagascar. the nature of africa is amazing. there are endless savannahs, where elephants, lions, tigers, zebras, monkeys and many other animals live in the wild. the next large continents are north and south america. they are interlinked by the continental landmasses and are almost of the same size. two americas together are also known as the new world. the first european settlers appeared here around the 10th century, but it wasn’t until 1492 when columbus officially discovered america. today, more than 900 million people live in the americas. the next in area is antarctica. it covers over 14 million square kilometers. it is the coldest and the windiest continent in the world, which is mostly covered by ice. people don’t normally live there, but there are some regular expeditions that conduct researches across the continent. the smallest continent is australia. together with the pacific ocean islands it forms oceania. in my opinion, the world is amazingly beautiful. it is almost impossible to explore it all. however, some explorers spend years to find out more about the sea world, the tropical forests and other interesting parts of our planet. подробнее - на -
1)about 23,000 years ago, a single group splintered off from an east asian population. the group, hailing from northeast asia, crossed the bering land bridge between northeast asia and alaska, eventually making their way to the rest of the americas. about 13,000 years ago—much more recent than previous theories—native americans started to split into different groups, creating the genetic and cultural diversity that exists today. 2)as far as i know, there is the theory of the land bridge. 3)they are from asia. 4)- 5)nowadays, native americans live in america
