Γης, or "Earth" in English, is the third planet from the Sun in our solar system. It is the only known planet to support life, featuring diverse ecosystems, climates, and landscapes. The planet has a diameter of about 12,742 kilometers and is primarily composed of rock and metal. The surface of Γης is covered by approximately 71% water, mainly in the form of oceans. The atmosphere is rich in nitrogen and oxygen, which are essential for life. Key features of Γης include its continents, such as Asia and Africa, and natural wonders like Mount Everest and the Amazon Rainforest.