Our Blue And Green Planet
Earth Earth is the third rocky planet from the sun and the only planet with life, and also known as the astronomical object. 29% of the surface island and 71% of the surface is water bodies. The distance from the sun is 149.5 million km. The mass of the earth is 10^24 kg. The diameter is 12,742 km. The surface area is 510.1 million km. Our atmosphere is almost made up of nitrogen and oxygen that we breathe in. Formation The Earth was formed by dust and swirling gasses 4.6 billion years ago. That time it was full of hot molten lava. Now it is full of grasslands, green forests and many water bodies. Layer 1) Inner core: It is a dense hot ball that is mostly iron. The temperature is 6,000 degrees Celsius . The diameter is about 6,970 km . 2) Outer core: It is a fluid layer mostly composted with iron and nickel. This layer is about 2,400 km (1,500 mi) thick. The temperature is between 4,500 and 5,500 degrees Celsius (8,132 and 9,932 degrees Fahrenheit) . 3) Mantle: The man...