The innermost layer of the earth isa)Crustb)Corec)Mantled)SimaCorrect answer is option 'B'. Can you explain this answer?

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The innermost layer of the earth is

a)
Crust
b)
Core
c)
Mantle
d)
Sima

Correct answer is option 'B'. Can you explain this answer?

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Test: Interior of the Earth - 2

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The innermost layer of the earth isa)Crustb)Corec)Mantled)SimaCorrect ...

Imp. Points

Earth Core:

The innermost layer of the earth is known as the core.
It is divided into the inner core and the outer core.
It comprises a high concentration of nickel and iron.
The outer core:
- The outer core, surrounding the inner core, lies between 2900 km and 5100 km below the earth’s surface.
- The outer core is composed of iron mixed with nickel (nife) and trace amounts of lighter elements.
The Inner Core:
- The inner core extends from the center of the earth to 5100 km below the earth’s surface.
- The inner core is generally believed to be composed primarily of iron (80%) and some nickel (nife).
- Since this layer can transmit shear waves (transverse seismic waves), it is solid. (When P-waves strike the outer core inner core boundary, they give rise to S-waves)

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