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The lower mantle is older and cooler than the upper mantle. Thank you for reading this I'm comment if you like one direction(: hehe

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11y ago
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11y ago

because the lower mantle is protect the outside part of the earth and that's why the lower mantle have to be more stronger

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6y ago

The upper mantle is hard and the lower mantle

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11y ago

The older mantle is older than the upper.

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Q: Why is the lower mantle more rigid and dense then the asthenosphere in the upper mantle?
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What part of the mantle is the asthenosphere found?

The asthenosphere lies in, and is the upper ductile part of, the mantle. It is the layer directly underneath the lithosphere; the layer composed of the crust and uppermost rigid mantle.


What is the difference between lithosphere and asthenosphere?

The difference between the lithosphere and the asthenosphere is that the asthenosphere is the lower part of the upper mantle it behaves like a plastic but flows much more easily than the rest of the mantle. The lithosphere however, includes the entire crust and the uppermost part of the mantle, it is more rigid and brittle and doesn't flow.


What are the three layers of the moon?

1.CORE The very heart of the moon. 2.LOWER MANTLE The asthenosphere, from where the majority of moonquakes emanate. 3. UPPER MANTLE The lithosphere which is the most rigid part of the mantle


What is the rigid zone above the asthenosphere that includes the crust and upper mantle?

The lithosphere


What is the least rigid part of the mantle?

The upper mantle is less rigid because the pressure is lower


How is the lithosphere different then the adthosphere?

The lithosphere is defined as the crust plus the brittle, uppermost mantle to which it is attached. The part of the upper mantle called the asthenosphere is ductile, and is the portion of the mantle on which the lithosphere 'floats'. Essentially, it is a difference in the degree of ductility. The lithosphere is brittle; the mantle is ductile.


What is the difference between the asthenosphere and magnetosphere?

The asthenosphere is a layer of Earth's mantle upper consisting of hot rock with a plastic texture. It is beneath the rigid lithosphere. The magnetosphere is Earth's magnetic field.


The earth mantle includes which three of Earth layers?

The three Earth layers that are included in the Earth mantle are the lithosphere, asthenosphere, and mesosphere. The lithosphere is the solid, outermost layer that consists of the crust and uppermost part of the mantle. The asthenosphere is a more plastic and ductile layer beneath the lithosphere that allows for the movement of Earth's tectonic plates. The mesosphere is the rigid, lower part of the mantle that extends towards the Earth's core.


What is the rigid layer of earth surrounding the asthenosphere?

The rigid layer of earth surrounding the asthenosphere is the lithosphere.


Is the Earth's asthenosphere rigid?

No. The asthenosphere is plastic in texture.


What is the zone of rigid brittle rock that the crust and the uppper layer of the mantle?

plat techtonce


Compare and contrast earths lithosphere and asthenosphere?

Earths outer most layer consits of the crust and uppermost mantle and forms a relatively cool, rigid shell called the lithosphere. This layer averges about 100 kil. in thickness. Beneath the lithosphere lies a soft, comparatively weak layer known as the asthenosphere. The lower lithosphere and upper asthenosphere are both part OS the uppr mantle.