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Because, if the earth is shrinking then the crust has to shrink aswell. Common Sense really.
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∙ 14y ago
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How many layers are there in the earth's crust?
The crust alone contains millions of different layers of sedimentary rock. For the layers of the Earth, some of which are rock and some of which are not, see the related link below.
Is the pressure on the earth's crust equalized?
No, pressure on the crust of the earth is not equalized. We have plate tectonics and the shifts associated with tensions between the plates acting to cause uplift at convergent boundaries and rifting as divergent boundaries as just two examples. A link is provided below.
How many layers of the earth are there in all?
There are three main layers based on composition: the crust, the mantle, and the core. There are numerous physical layers. See the link below.
Which metal is a member of the boron family and is the most abundant metal in the earth's crust?
Oxygen is the most abundant element in the earth's crust and is not in the boron family. Aluminum is in the boron family and is the third most abundant element in the earth's crust. Refer to the related link for a list of the 10 most abundant elements in the earth's crust and their percentages.
A machine that records the movement of rocks within earth's crust is called what?
A Seismograph. See link for more information:
What is the theory that the landmasses on the earths crust slowly move away or toward each other?
Movement of landmasses on the earth's crust is a dynamic that is termed plate tectonics. Use the link below to the related question for more information.
Percentage of elements present in earth's crust?
Please see this link.
What are The most abundant elements in Earth's curst?
The two most abundant element's in the earth's crust are oxygen and silicon. Refer to the related link to see a list of the most abundant elements in the earth's crust.
What is the most abundant metallic element on the earth?
In the crust, aluminum. For the Earth as a whole, iron.
What is a member of the boron family and is most abundant metal in the earths crust?
Oxygen is the most abundant element in the earth's crust and is not in the boron family. Aluminum is in the boron family and is the third most abundant element in the earth's crust. Refer to the related link for a list of the 10 most abundant elements in the earth's crust and their percentages.
What is a member in a boron family and most abundant metal in the earths crust?
Oxygen is the most abundant element in the earth's crust and is not in the boron family. Aluminum is in the boron family and is the third most abundant element in the earth's crust. Refer to the related link for a list of the 10 most abundant elements in the earth's crust and their percentages.
Is the crust of the earth a liquid or a solid?
Generally speaking, the crust of the earth is a solid. Yes, there are oceans on the earth. Heck, they cover much of the surface. But the crust extends down well below the bottom of the ocean. Earth's crust is up to 70 kilometers deep, which is over 40 miles. The deepest the ocean gets is roughly 7 miles. A link is provided to the Wikipedia article on the earth's structure.
How many layers are there in the earth's crust?
The crust alone contains millions of different layers of sedimentary rock. For the layers of the Earth, some of which are rock and some of which are not, see the related link below.
How did the continent of Australia drift away from Gondwanaland?
The theory of plate tectonics helps better explain our small continent, Australia, in its departure from Gondwanaland. The earth's crust was heating up (no, literally, heating up) as it released the continents away. Every liquid core separates the Earth's crust from each other. More info is on this link: http://www.teara.govt.nz/TheBush/UnderstandingTheNaturalWorld/EvolutionOfPlantsAndAnimals/2/en
Is the pressure on the earth's crust equalized?
No, pressure on the crust of the earth is not equalized. We have plate tectonics and the shifts associated with tensions between the plates acting to cause uplift at convergent boundaries and rifting as divergent boundaries as just two examples. A link is provided below.
How many layers of the earth are there in all?
There are three main layers based on composition: the crust, the mantle, and the core. There are numerous physical layers. See the link below.
How was earth named earth?
The name earth has a double etymology. On one side it is the word that designates the crust of the earth, which we also call earth. This is common to most languages. Also common is the link to a certain goddess named Earthe or Gea.
