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The outer core of Earth is mostly liquid iron and nickel. The liquid iron flows in a spiral pattern and creates a dipolar magnetic field. Why does the iron in the outer core, spiral or have a helical flow pattern?
A. Convection and Earth's rotational spin cause the helical pattern.
B. Liquid iron has a natural spin that causes the helical spiral pattern.
C. Conduction and Earth's rotational spin cause the helical pattern.
D. The energy flow currents in the outer mantle cause the helical pattern.

Respuesta :

The liquid iron flows in a spiral pattern and creates a dipolar magnetic field  does the iron in the outer core, spiral  because liquid iron has a natural spin that causes the helical spiral pattern. Thus, option (b) is correct.

What is a helical flow pattern?

Helical flow is the cork-screw-like flow of water in a meander. It is one example of a secondary flow. Helical flow is a contributing factor to the formation of slip-off slopes and river cliffs in a meandering section of the river.

Meanders start when friction with the channel bed and banks causes turbulence in the water flow. This results in a spiraling flow of water called helicoidal flow- a corkscrew-like movement of the water as it spirals downstream from bank to bank.

Thus, option (b) is correct.

To learn more about helical flow, refer to below link:

https://brainly.com/question/20176111

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