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No. The Earth's core and mantle would have cooled down by now (4500 million years of cooling) if the heat in the centre were just residual heat from the Earth's formation.
When the Earth was forming and entirely molten, all the heavy elements will have sunk into the core of the planet, separating themselves out into layers of increasing density (this layering would have been disturbed somewhat by convection movements). This would mean that the very heavy radioactive elements would have moved to the core and it is the decay processes of these that is keeping the interior of the earth hot and has been driving plate tectonics and volcanic activity. In essence the planet is a slow fission reactor/bomb.
You may well ask - if all the heavy elements sank, why can we find any at the surface now? - and the answer to that is that a second wave of heavy elements was delivered to the planet after the surface had solidified/cooled, in the late heavy bombardment (which is probably when Earth's) water was delivered too.
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Most of Earth's volume is contained in the?
most earths volume is contained in the mantle.
Which layer contains most of the earths mass?
The Mantle
What is crust and upper mantle of the EARTH?
The upper mantle is in between the lower mantle and the earths crust Crust- the outer most solid shell of the earth. The Uppermost mantle and the earth's crust form the lithosphere.
Where is most of earths water stored?
Most water is stored in the oceans. However, the most freshwater is stored in glaciers. To the person whose answer I'm editing, a reservoir is anything that holds water, so of course that's where water's stored.
Name three elements that make up most of earths mantle?
The rocks in earths mantel are made up of 44.8% oxygen, 21.5% silicon, and 22.8% magnesium. Iron, calcium, sodium, aluminum, and potassium are also present. The elements occur in rocks as oxides.
Most of the earth's heat is stored in earth's mantle true or false?
False
Where is most of the earths new crust found?
in the earths mantle
Where would you be most likely to find granite in earths mantle or earths continents?
you will find it in earths mantle because it is a kind of an igneous rock
Which layer contains most of the earths mass?
The Mantle
Most of Earth's volume is contained in the?
most earths volume is contained in the mantle.
What is most of the earths mass in?
Most of the mass of the Earth is in the mantle, most of the rest in the core; the part we inhabit is a tiny fraction of the whole
Below earths crust is a layer called the mantle which material will most likely be found in the mantle?
Ultramafic igneous rock.
Where is the most volume at in earths layers?
Most of earth's volume has been scientifically proved to be in the earth's mantle.
What Earth layers make up the most percentage of earths mass?
The mantle layer.
What layers makes up most earths mass?
The Mantle. It is the largest and thickest layer in the earth. But this answer might not be actually true. Because the earth has all these layers and the mass is added up. -By Olivia Agbo A 12 year old. Thank you for your support.
Which of earths spheres have the most mass?
The core of the Earth. This is because it is molten iron.
What is crust and upper mantle of the EARTH?
The upper mantle is in between the lower mantle and the earths crust Crust- the outer most solid shell of the earth. The Uppermost mantle and the earth's crust form the lithosphere.
