ESS
Grade-10
Easy
Question
SIMA stands for _____________ in the crust.
- Silicon + manganese
- Silica + manganese
- Silicon + magnesium
- Silica + magnesium
Hint:
Magnesium and silicon
The correct answer is: Silica + magnesium
A mantle is a layer of rock shell that surrounds the core and is made up of basic silicates It is around 2900km. Magnesium and silicon are 2 components of mantle.
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