alleryStart learning →Which element makes up the largest share of Earth's whole mass?
AOxygen
BIron
CSilicon
DAluminium
Answer & Solution
Correct answer: B. Iron
Iron is about 32.1 percent of Earth's mass, ahead of oxygen at 30.1 percent, because the dense core is mostly iron.
Keep practising Earth and its environment
Browse all Earth and its environment questions for Olympiad (Class 6), or explore more General Knowledge topics.
Related questions
Earth is the only planet in the Solar System with what on its surface?The thermosphere can reach 1500 °C, yet it would not feel hot. Why?The troposphere is thickest, about 17 km, over which region?Which is the outermost layer of Earth's atmosphere?About what fraction of the air's mass lies in the lowest 11 km?Which rock mainly forms the oceanic crust?What separates the crust from the mantle?Apart from leftover formation heat, Earth's interior is warmed mainly by what?