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questionedithistorytranslations
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flag English language

What is the most common element (by mass) forming the planet Earth?
carbon
oxygen
iron
silicon
Iron is most abundant in the Earth's outer and inner core, and it is the fourth most common element in the Earth's crust.
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flag Polish language

Jaki jest najpowszechniejszy pierwiastek w składzie planety Ziemia?
węgiel
tlen
żelazo
krzem
Żelazo to główny składnik jądra Ziemi, zarówno wewnętrznego, jak i zewnętrznego. W relatywnie cienkiej skorupie ziemskiej dominuje zaś tlen, żelazo znajduje się na czwartym miejscu.
Wujek Dobra Rada
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flag German language

Was ist das häufigste Element der Erde?
Kohle
Sauerstoff
Eisen
Silizium
Am Gesamtaufbau der Erde inklusive Erdkern, der vermutlich aus einer Nickel-Eisen-Legierung besteht, ist Eisen mit etwa 35% beteiligt und damit noch vor vor Sauerstoff (30 %), Silicium (15 %) und Magnesium (13 %) das häufigste chemische Element auf Erden.
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anthrowiki.at
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