What is the oceanic crust
a)SIAL (silica + alumina)
b)SIMA (silica +magnesium)

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Solution

Oceanic crust is made up of b) SIMA

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What is the oceanic crusta)SIAL (silica + alumina)b)SIMA (silica +magnesium)

Oceanic crust is made up of b) SIMA

What is the oceanic crust
a)SIAL (silica + alumina)
b)SIMA (silica +magnesium)