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What are the major layers of the earth?

Answer 1

Victoria Argento

There are four major layers.

They are...

The Crust:

Very thin
The part you live on top of
Separated into plates (when they knock against each other Earthquakes happen.)

The Mantle:

The largest layer (1800 miles thick)
Flows because of very high temperatures
The movement of the plates is caused by this flowing

The Outer Core:

Composed of the metals Nickel and Iron
Completely liquid because of extremely high temperatures (4000-9000 degrees Fahrenheit)

The Inner Core:

Temperatures and pressures are so high that the metals are squeezed together and are not able to move about like a liquid, but are forced to vibrate in place as a solid.

Note that some of these layers can be broken down and described further.

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Answer 2

Nova Anderson

The major layers of the Earth are the crust, mantle, outer core, and inner core.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.