The Three Components of the Earth
The third planet from the Sun is the Earth. It is the only object in the Solar System with a hydrosphere with a large body of liquid water. Life evolved on Earth because of the richness of the hydrosphere. This water-bearing surface supports a variety of organisms. The chemistry of the hydrosphere allows for liquid water to be absorbed by living organisms. The Earth is the only planet with this unique feature.
The mantle is 3,000 kilometers thick and starts thirty kilometers beneath the surface of the planet. It is composed of iron, magnesium, and silicon. It is dense and semi-solid. The temperature of the mantle is about a million degrees Fahrenheit higher than the layer below it. The resulting partially melted rock is the result of molten rock. Despite the strength of the mantle, Earth’s tectonic plates still slide over it.
In addition to the outer core, the Earth’s interior is composed of air, water, and life. The former is warmer and contains a thin layer of iron, while the latter is composed primarily of solid carbon and nickel. The outer core is 1,400 miles thick and is the source of Earth’s magnetic field. It’s also the place where life forms and evolves. The outer core is also responsible for the production of the planet’s magnetic field.
The mantle is the layer under the crust and moves slowly as fingernails do. The outer core is a liquid layer of iron and nickel that revolves around the inner core. The inner core is a solid ball of iron and nickel that is hottest than the surface of the Sun. The various layers of the Earth work in harmony and each one plays an important role in the planet’s ecosystem. The three components form a symbiotic system that makes life possible on earth.
The mantle is a layer of rock under the crust that flows as slowly as fingernails do. The outer core is a liquid layer of iron and nickel that moves around the inner core. This motion is what makes the Earth so hot. The inner core is a solid ball of iron and nickel that is hotter than the surface of the Sun. The Earth’s layers all work together in a system to keep life in the world.
The mantle is a layer of rock below the crust. It flows slowly, like a fingernail grows, and it is the third planet in the solar system. It is the only place in the universe where life has been observed. Besides the stars, the Earth’s layers are also important for the planet’s health. There are several other types of meteorites and comets, but it is only the mantle that has been identified as a living organism.