Wasser, or water in English, is a clear, colorless liquid that is essential for all known forms of life. It covers about 71% of the Earth's surface and is found in oceans, rivers, lakes, and glaciers. Water is made up of two hydrogen atoms and one oxygen atom, giving it the chemical formula H₂O. It plays a crucial role in various natural processes, including weather patterns and the water cycle. In addition to its importance in nature, Wasser is vital for human health and daily activities. It is used for drinking, cooking, cleaning, and agriculture. Access to clean and safe water is a fundamental human right, and organizations like the World Health Organization work to ensure that people around the world have sufficient access to this essential resource.