ImToTrashy ImToTrashy

06-04-2017
Social Studies

contestada

Rocks in the Earth's mantle contain a higher percentage of _ and _ than do rocks in the Earth's crust.
a. iron and silicon
b. iron and magnesium
c. silicon and oxygen
d. magnesium and oxygen

Respuesta :

tania24 tania24

06-04-2017

Iron and magnesium we all know that

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supergirl17 supergirl17

06-04-2017

Letter b is the answer

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