'The most abundant compound in the earth's crust is SiO2, the Si standing for this element'
silicon
IT'S ELEMENTAL: The most abundant compound in the earths crust is SiO2, the Si standing for this element
The most abundant compound in the earth's crust is SiO2, the Si standing for this element
The most abundant compound in the earth's crust is SiO2, the Si standing for this element
IT'S ELEMENTAL
silicon
IT'S ELEMENTAL