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$21.55
Unisex T-Shirt
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Oxygen Unisex T-Shirt Front
+ 17 colors
Blue
Done
star4.7
SMLXL2XL3XL
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Oxygen
Designed by simbamerch
Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table and is a highly reactive nonmetal and oxidizing agent that readily forms oxides with most elements as well as other compounds.[3] By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium.[4] At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless and odorless diatomic gas with the formula O 2. This is an important part of the atmosphere and diatomic oxygen gas constitutes 20.8% of the Earth's atmosphere.[5] Additionally, as oxides the element makes up almost half of the Earth's crust.[6] Dioxygen is used in cellular respiration and many major classes of organic molecules in living organisms contain oxygen, such as proteins, nucleic acids, carbohydrates, and fats, as do the major constituent inorganic compounds of animal shells, teeth, and bone. Most of the mass of living organisms is oxygen as a component of water, the major constituent of lifeforms. Conversely, oxygen is continuously replenished by photosynthesis, which uses the energy of sunlight to produce oxygen from water and carbon dioxide. Oxygen is too chemically reactive to remain a free element in air without being continuously replenished by the photosynthetic action of living organisms. Another form (allotrope) of oxygen, ozone (O 3), strongly absorbs ultraviolet UVB radiation and the high-altitude ozone layer helps protect the biosphere from ultraviolet radiation. But ozone is a pollutant near the surface where it is a by-product of smog. At low earth orbit altitudes, sufficient atomic oxygen is present to cause corrosion of spacecraft.[7] Oxygen was discovered independently by Carl Wilhelm Scheele, in Uppsala, in 1773 or earlier, and Joseph Priestley in Wiltshire, in 1774, but Priestley is often given priority because his work was published first. The name oxygen was coined in 1777 by Antoine Lavoisier,[8] whose experiments with oxygen helped to discredit the then-popular phlogiston theory of combustion and corrosion. Its name derives from the Greek roots ὀξύς oxys, "acid", literally "sharp", referring to the sour taste of acids and -γενής -genes, "producer", literally "begetter", because at the time of naming, it was mistakenly thought that all acids required oxygen in their composition. Common use of oxygen includes residential heating, internal combustion engines, production of steel, plastics and textiles, brazing, welding and cutting of steels and other metals, rocket propellant, oxygen therapy, and life support systems in aircraft, submarines, spaceflight and diving. . . . . red bubble t shirts, t shirts art design, redbubble design, shirt artist, artistic tees, make a tshirt design, cool t shirt art, shirt graphics, custom t shirts near me, redbubble shirts, cool t shirt designs, artistic tee, best online tshirt store, artwork tees, t shirt design art, artsy tees, awesome t shirt designs, buy printed t shirts online, order t shirts online, custom printed t shirts online, pixelated t shirt, t shirts art design, pixel art shirt, vintage t shirts, cool t shirts, pixel shirts, t shirts for sale, shirt online shop, funny tees online, best online tshirt store, buy online t shirts, tee shirt shop, online t shirt shop, t shirt selling, custom printed t shirts, t shirt design and sell, printed t shirts online shopping, best online tshirt store, cheap online t shirts, cool printed t shirts online, buy mens t shirts, unique tee shirts online, buy best t shirts online, shirt shop online, buy mens t shirts online

Unisex T-Shirt

  • Plain color t-shirts are 100% Cotton, Heather Grey is 90% Cotton/10% Polyester, Charcoal Heather is 52% Cotton/48% Polyester
  • Ethically sourced
  • Slim fit, but if that’s not your thing, order a size up
  • 4.2oz/145g, but if that’s too light, try our heavier classic tee.

Reviews

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The best t-shirt ever

by Sara on Jul 3, 2018

This shirt was so soft and comfortable and perfect I love it!

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love the shirts

by Karen B. on Jun 20, 2018

I'm know around the office for my t-shirts ...they have to say something; whether it be historical figures, musicians or a political statement. Your shirts have a good fit and they wash and wear well. I've spent big bucks on T-shirts that aren't nearly as durable as the quality shirts you offer. Thanks for putting out a quality product

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