Question

What is creating our Earth's Magnetic field?
1) Our Earth's iron liquid outer core rotating around the solid inner core
2) Our Earth having a stationary inner core
3) Our Earth having rocky center
4) All of the above

Answer 1

Answer:

1) Our Earth's iron liquid outer core rotating around the solid inner core

Explanation:

The earth's magnetic field or the geomagnetic field is produced as a result of the earth's iron liquid outer core rotating around the solid inner core.

This produces the earth's magnetic field.

• The earth's core is made up of solid and liquid region.
• Only the densest elements are found within this region.
• So, the core is made up of metals which are mainly iron and nickel.
• The outer core is liquid or molten iron and the inner core is solid.
• The molten iron and nickel in the outer core moves around the inner core and generates the currents which induces a magnetic field round the earth.