Oxygen comprises about 47% by weight of Earth's crust
12
97%
The Sun's photosphere comprises 0.77% oxygen by mass but is mostly hydrogen (73.5%).
if this is math and your asking what gas has a percent by volume 78.09 it is nitrogen
The approximate percent of oxygen in Earth's lower atmosphere is around 20.95% by volume.
Approximately 20 percent of the Earth's atmosphere is made up of oxygen.
The air you breathe comprises three main gases. The largest proportion (79%) comprises the inert gas nitrogen, with oxygen making up 21 percent and carbon dioxide just 0.03 percent
Its water.... so over 70 percent of the earths surface
The Earth's grass produce 20 to 30 percent oxygen. The other 70 to 80 percent of oxygen is produced by marine plants.
obviously something but not known what!
Oxygen Silicon Sodium Potassium Magnesium Iron
The most prominent gases are nitrogen (78 percent), oxygen (21 percent) and argon (nine-tenths of a percent).