Oxygen is most abundant in rock, as an elemental component of minerals.
the majority of it is found in water
many places mostly in seawater (erosion) and in the earths crust
under the earths crust in trees and everywhere you can think of pretty much
crude oil is of lighter density had hence floats on water molecules and prevents any living micro-organism to absorb oxygen/water essential for life mostly found in the earths crust.
The Elements found in a high proportion in the Earths crust are, 1. Oxygen. 2. Silicon. 3. Aluminum. 4. Iron. 5. Calcium. 6. Sodium. 7. Potassium. 8. Magnesium.
in the earths crust
If you talk about elements, then oxygen is O, and O is found in many, many COMPOUNDS. So, if a compound is found in the crust, and if it contains oxygen (like water, H2O), then the element oxygen will be counted. It doesn't have to be in a gaseous form. In addition, O2 gas can also be found dissolved in some liquids.
Earth's crust is mostly made out of about 46% oxygen, 28% silicon, 8% aluminum, 5% iron, 4% calcium, 3% sodium, 2% magnesium and about 1.6% other elements. Very commonly found as silicates.
in the earths mantle
oxygen and silicon are the two elements that make up more than 80 percent of the atoms found in the Earths crust...(there is a constructed response for you guys)
They can be found in the earths crust.
No because iron reacts with various substances including oxygen in the air to produce rust.