write about the natural occurrence of hydrogen
Answers
Hydrogen: Occurrence. Gaseous hydrogen occurs in Nature in relatively small amounts. The earth's atmosphere contains about one part of hydrogen per 15000 to 20000 of air (in molecules number), although this proportion increases with altitude. The gases emited by volcanoes, charcoal mines and oil wells contain hydrogen
stars ( including our Sun) mainly composed of hydrogen. In fact hydrogen is the most abundant element in the universe. on the earth however hydrogen occurs in a very small amount in the free state in the air, in volcanic gases and in Earth crust
But there is a plenty of hydrogen on earth in combination with other elements that is as a part of compounds water is an important source of hydrogen every nine parts by mass of water contains one part of hydrogen in combination with carbon hydrogen is present in natural gases and petroleum as well as in all living things acids and alkynes also contain hydrogen