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Which elements are mainly considered in sial?

Answer and explanation

Correct answer: Silica and aluminium

Sial refers to the relatively light upper part of the continental crust, which is considered rich in silica and aluminium. Its name is formed from Si (silica) and Al (aluminium). Iron and nickel are associated mainly with NiFe, the principal material of the core. Exam tip: remember Sial = Si + Al, while Sima = Si + Mg.

Related tags

SialEarth InteriorContinental CrustSilicaAluminiumGeography Class 11Interior Structure Of The EarthInterior Of The Earth

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