Because there different kind of layers and they each are totally different from each other!
Some material and/or metals are present in different layers.
No. The layers of Earth are portions of the planet that are position one on top of another, somewhat like the layers of an onion. The plates are sections are sections of the uppermost layers that break up the surface of the planet.
Compared to the other layers, the mantle is the largest and thickest. But it's also one of the Earth's four main layers as a similarity.
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Rock layers are different and unique to each other due to the fact that each layer represents a time period. They are formed when rock, sediment, and minerals settle into one place for a long time and harden when another layer goes over it. Reading rock layers allow geologists to determine how much time has passed. They even sometimes tell of the history of the earth and all of the disasters that have occurred in each era.
a metamorphic rock is a rock that has been changed from one rock to another by heat and/or pressure.....they amount of layers would depend on what kind of rock.....all rocks have a different amount of layers sorry
the crust
time is different from one country to another because where the earth moves around the sun and how the axis is tilted.
its above the earth. it is one of the layers of the atmosphere.
Different layers of atmosphere protect us. They do it by blocking the unwanted radiations of the sun.
Scientists send seismic waves through the earth. These travel at different speed according to the density of the material that they travel through. When they bounce back, scientists use these data to guess what the earth is made up of.
No one knows for sure about how the layers formed. Scientists are trying to find out how. SORRY : (