Answers

2016-07-12T07:43:21+08:00
In terms of its constituent elements, the mantle is made up of 44.8% oxygen, 21.5% silicon, and 22.8% magnesium. There's also ironaluminumcalciumsodium, and potassium.
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2016-07-12T09:40:33+08:00
The mantle is Made up of 44.9% Oxygen, 21.5% Silicon, and 22.8% magnesium
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