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.

Answers distribution

carbon
oxygen
iron
silicon
answers
flagCroatia
0%
12%
81%
6%
16
flagthe United Arab Emirates
19%
9%
71%
0%
21
flagPakistan
17%
13%
57%
8%
45
flagMalaysia
22%
22%
55%
0%
18
flagNigeria
6%
37%
50%
6%
16
flagCanada
28%
10%
48%
12%
49
flagIndia
16%
19%
46%
15%
309
flagItaly
20%
15%
45%
20%
20
flagthe Netherlands
34%
12%
40%
12%
32
flagGermany
21%
18%
38%
21%
102
flagthe United States
30%
17%
36%
14%
547
flagNorway
28%
24%
36%
12%
25
flagthe United Kingdom
30%
16%
33%
18%
252
flagAustralia
38%
12%
31%
17%
47
flagthe Philippines
20%
25%
30%
20%
40
flagPoland
28%
20%
28%
21%
7127
flagIndonesia
11%
58%
23%
5%
17
flagRepublic of Ireland
42%
28%
21%
7%
28
flagFrance
52%
15%
21%
10%
19
flagUnknown
30%
29%
16%
22%
510

Gender

men26%
women25%
carbon
30%
31%
oxygen
21%
19%
iron
26%
25%
silicon
22%
23%

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question
answers
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What is the most common element (by mass) forming the planet Earth?
1520
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