By mass, Earth is composed of:
Iron - 32.1%
Oxygen - 30.1%
Silicon - 15.1%
Magnesium - 13.9%
Sulfur - 2.9%
Nickel - 1.8%
Calcium - 1.5%
Aluminium - 1.4%
Other element - 1.2%
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WO World of Statistics @stats_feed · 2.32K subscribers