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Which option gives two correct identifications of outer core?

Answer and explanation

Correct answer: Liquid and metallic

The outer core is the liquid part of Earth’s core and is composed mainly of metals such as iron and nickel. Therefore, “liquid and metallic” is correct. The solid metallic part is the inner core, while silica-aluminium-rich material is associated with the crustal SIAL layer. Exam tip: remember that the motion of liquid metals in the outer core helps generate Earth’s magnetic field.

Related tags

Outer CoreEarth InteriorLiquid Metallic CoreIron NickelGeomagnetic FieldInterior Structure Of The EarthInterior Of The EarthGeography

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