All plants, animals, and fungi need oxygen for cellular respiration, which extracts energy by the reaction of oxygen with molecules derived from food and produces carbon dioxide as a waste product.

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Wikipedia contributors. (2024, July 17). Oxygen. In Wikipedia, The Free Encyclopedia. Retrieved July 25, 2024, from https://en.wikipedia.org/w/index.php?title=Oxygen&oldid=1235052079

45 years later, Shoreview towers stand strong (presspubs.com) SHOREVIEW — It has been 45 years since the Shoreview TV tower collapse that left seven workers dead the day after Labor Day in 1971.

Oxygen (Wikipedia) Oxygen is a chemical element; it has 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. Oxygen is Earth’s most abundant element, and after hydrogen and helium, it is the third-most abundant element in the universe. At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless and odorless diatomic gas with the formula O2. Diatomic oxygen gas currently constitutes 20.95% of the Earth’s atmosphere, though this has changed considerably over long periods of time. Oxygen makes up almost half of the Earth’s crust in the form of oxides.