Question

what are the various forms in which oxygen occurs in the earth's crust?

Answer 1

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. Nearly 90 percent of the weight of the oceans is due to oxygen. In addition, oxygen is thought to be the third most abundant element in the universe and in the solar system.It occurs in the form of oxides in the earth's crust.

The discovery of oxygen is usually credited to Swedish chemist Carl Wilhelm Scheele (1742-86) and English chemist Joseph Priestley (1733-1804). The two discovered oxygen at nearly the same time in 1774, working independently of each other.

Answer 2

metals

silicon

carbonate

sulphate

nitrates

HOPE IT HELPS YOU!!