The most common elements in Earths crust

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Quiz by zoedad
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Last updated: June 11, 2017
First submittedJune 11, 2017
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Parts per million
Answer
461000
Oxygen
282000
Silicon
82300
Aluminium
56300
Iron
41500
Calcium
Parts per million
Answer
23600
Sodium
23300
Magnesium
20900
Potassium
5650
Titanium
1400
Hydrogen
+1
Level 69
Jun 11, 2017
Please accept Aluminum as a correct spelling option