Earth is the only one of the eight planets in the solar system that is known to have an appreciable amount of water on its surface (see planet). About 71 percent of the Earthâs surface is covered by the oceans, and half of the world is covered by a layer of water more than two miles in depth.
The official languages of Switzerland are, like you said, German (official written as you canât weite Swiss German), French, Italian and Romanche. There were never unified to one because Switzerland is federalist and wanted to allow the Kantons to keep their cultural diversity.
There are about 8 million people in Switzerland. About 64% of the people speak German as their first language, in northern and central Switzerland. 19% of the people speak French as their first language, in the west of Switzerland. 8% of the people speak Italian, in the south of Switzerland.