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Some planets are made completely of layers of thick gases. Also space exploration has not progressed enough to a point where the layers of other planets have been discovered.
The three main layers of the earth are the Core, Mantle and Crust. The Core is mostly made from iron and nickel, the Crust from oxygen, silicon and aluminum and the mantle silicon,oxygen,iron and magnesium.
The earliest humans to reference the ground called it earth (in their languages, of course). Over time, this has spread to reference the entire planet, rather than just the ground in one spot. Other popular names include Terra Firma and Gaia.
Minerals Make up rocks, Which make up the layers of the Earth(Crust, Lithosphere, asthenosphere, and Mantle)(Minerals make up the inner and outter core). The layers of the earth(crust) make up plate tectonics; convection currents and Plates(made of rock)
for the same reason that if you pour oil on top of a jar of water the oil stays on top. the layers of the earth have different densities and so the heaviest stuff sank to the center while the lighter stuff rose to the top.
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The other two layers of the Earth are the mantle and the core. The mantle is primarily composed of silicate minerals, while the core is mostly made of iron and nickel.
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The Earth has layers because it is made up of materials of varying density.
Yes it is
The Earth's crust is the least dense layer. It is made up of rocks like granite and basalt and is relatively thin compared to the other layers of the Earth.
8 ;airs
The core.
Ahton Kelly
Layers
The core.
crust