Question

Which of the following part of the earth is made up of molten iron?
A. mantle
B. inner core
C. outer core
D. crust

Answer 1

Answer:

B. inner core is made up of molten iron

Answer 2

C. Outer core is the part of earth which made up of molten iron.

Explanation:

• Earth's outer core lies between inner core and mantle.
• This fluid layer is of thickness 2400 km.
• Inner core is a solid layer where outer core is a fluid layer because it does not get enough pressure like inner core.
• This layer is small compared to other layer because it is a fluid layer and also due to seismic inversions of body waves.
• It temperature is estimated around 4000 kelvin.
• The eddy current produced in these fluids are responsible for the magnetic field of earth.