Answers

2016-07-12T20:47:30+08:00
Oxygen po kasi may 46.6% po siya dito sa mundo
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2016-07-12T23:56:21+08:00
Basically , there are 6 elements that is mainly made the earth's crust but agreeable that Oxygen has the most or greatest percentage among them...
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Oxygen - 46.6
Silicon - 27.7
Aluminum - 8.1
Iron - 5.0
Calcium - 3.6
Sodium - 2.8
Potassium - 2.6
Magnesium - 2.1