Question

Form in which o2 is present in earth crust

Answer 1

Answer:

Figure 2. Oxygen makes up a large part of the world we live in, both the ground and sky. Oxygen makes up 46% of the Earth's crust, largely as silicates, compounds of oxygen and silicon. Oxygen also comprises around 21% of the atmosphere as molecular oxygen and ozone.

Explanation:

The first two members of the family, oxygen and sulfur, are found in most ores. Oxygen is by far the most abundant element in the Earth's crust. Nearly half of all the atoms in the earth are oxygen atoms. Oxygen also makes up about one-fifth of the Earth's atmosphere