The answer is option e that is e. Iron and magnesium.
Dark silicates have a specific gravity of 3.2 to 3.6 and are composed primarily of silica tetrahedral and iron and magnesium.
Iron and magnesium is a component of dark silicates that have a specific gravity of 3.2 to 3.6.
So the answer is iron and magnesium.
Hi There! :)
Active <span>transport requires the use of energy. :)
Therefore A</span>
Because atoms can join together to form molecules, which in turn form most of the objects around us.