is made of land air water and life. On a different perspective the earth is made of many elements in different layers within the planet.
The earth’s land is in the form of mountains valleys and flat places. The air is made of different gases. The water is in the form of oceans lakes rivers streams rain snow and ice. Life is in the form of we people flora and fauna.
The earth’s atmosphere is made of mostly nitrogen (78%) and oxygen (21%) with trace amounts of argon carbon dioxide water vapor neon helium hydrogen and other gases.
The earth’s surface is mainly covered with liquid water. The continental crust the outermost surface layer is made of rocks consisting of silica and alumina. The various elements are: oxygen silicon aluminum iron calcium magnesium potassium and sodium.
The mantle under the crust is made of silicate rocks rich in magnesium and iron with aluminum oxygen and other minerals.
At the center of the earth is the core which has two parts: the liquid outer core composed of a nickel-iron alloy encompassing the solid inner core of iron and nickel. The core consists mostly of iron (80%). Recent speculation suggests that the core is enriched in gold platinum and other high-density transition elements.
Overall the earth is made of 32% iron 30% oxygen 15% silicon 14% magnesium 3% sulfur 2% nickel and much smaller amounts of calcium aluminum sodium potassium and other trace elements.