126
Question
Which of the following layers of the earth is believed to have the heaviest mineral materials of highest density?
Which of the following layers of the earth is believed to have the heaviest mineral materials of highest density?
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Solution
The correct option is A Inner core
The inner core is densest: not only is it made out of the densest components (iron & nickel plus small amounts of gold, platinum, tungsten, rhodium &c), but it is under the greatest compression owing to the overlying layers. It is because of the compression that the inner core is solid, whereas the outer core is liquid; the compositions are more or less the same.
The inner core is densest: not only is it made out of the densest components (iron & nickel plus small amounts of gold, platinum, tungsten, rhodium &c), but it is under the greatest compression owing to the overlying layers. It is because of the compression that the inner core is solid, whereas the outer core is liquid; the compositions are more or less the same.
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