Question

$\huge\blue{☺♜ Question ♪♝}$
★What is OXYGEN‽
★what is carbon dioxide ‽
★What is Nitrogen‽
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Answer 1

Explanation:

chemical element that constitutes 21 percent of the Earth's atmosphere, that is capable of combining with all elements except some noble gases

Answer 2

Answer:

❥︎Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.

❥︎Carbon dioxide is a colorless gas with a density about 53% higher than that of dry air. Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms. It occurs naturally in Earth's atmosphere as a trace gas.

❥︎Nitrogen (N), nonmetallic element of Group 15 [Va] of the periodic table. It is a colourless, odourless, tasteless gas that is the most plentiful element in Earth's atmosphere and is a constituent of all living matter.

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