Question

2 points

What are the two most common elements elements found in the Earth's
crust and what is their approximate percentages (within +/- 5%)?

Answer 1

Oxygen 46%, silicon 28%, aluminum 8.3%, iron 5.6%, calcium 4.2%, sodium 2.5%, magnesium 2.4%, potassium 2.0%, and titanium 0.61% everything else is less than 0.15%