- published: 08 Jun 2014
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Carbon dioxide (chemical formula CO2) is a colorless and odorless gas vital to life on Earth. This naturally occurring chemical compound is composed of a carbon atom covalently double bonded to two oxygen atoms. Carbon dioxide exists in Earth's atmosphere as a trace gas at a concentration of about 0.04 percent (400 ppm) by volume. Natural sources include volcanoes, hot springs and geysers and it is freed from carbonate rocks by dissolution in water and acids. Because carbon dioxide is soluble in water, it occurs naturally in groundwater, rivers and lakes, in ice caps and glaciers and also in seawater. It is present in deposits of petroleum and natural gas.
Atmospheric carbon dioxide is the primary source of carbon in life on Earth and its concentration in Earth's pre-industrial atmosphere since late in the Precambrian was regulated by photosynthetic organisms and geological phenomena. As part of the carbon cycle, plants, algae, and cyanobacteria use light energy to photosynthesize carbohydrate from carbon dioxide and water, with oxygen produced as a waste product.
Carbon (from Latin: carbo "coal") is a chemical element with symbol C and atomic number 6. On the periodic table, it is the first (row 2) of six elements in column (group) 14, which have in common the composition of their outer electron shell. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. There are three naturally occurring isotopes, with 12C and 13C being stable, while 14C is radioactive, decaying with a half-life of about 5,730 years. Carbon is one of the few elements known since antiquity.
Carbon is the 15th most abundant element in the Earth's crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. It is present in all forms of carbon-based life, and in the human body carbon is the second most abundant element by mass (about 18.5%) after oxygen. This abundance, together with the unique diversity of organic compounds and their unusual polymer-forming ability at the temperatures commonly encountered on Earth, make this element the chemical basis of all known life.
Visit http://www.makemegenius.com for free science video for kids. The carbon ( CO2 ) cycle comprises a series of events ,which hold the key to making our planet Earth sustainable for life. The Carbon Dioxide Cycle describes the movement of carbon ,how it is recycled & reused in biosphere.
Greenpeace co-founder Patrick Moore, PhD is now "The Sensible Environmentalist," cutting through phony “global warming” science with facts. Here, he explains why carbon dioxide (C02) is a hero, not a villain. MORE: http://www.therebel.media/patrick_moore_sensible_environmentalist_truth_about_carbon_dioxide http://www.Facebook.com/JoinTheRebel *** http://www.Twitter.com/TheRebelTV
If you're thinking of supplementing your grow room with extra carbon dioxide CO2 then make sure you watch this first! We show you what the best PPMs for CO2 are for optimum growth and bloom along with the best gear to help you achieve elevated carbon dioxide levels in your indoor garden.
DOWNLOAD HERE: http://newsdirect.nma.com.tw/SingleItem.aspx?asset_id=OEM_20110915_OINT_001 The death of a woman killed by toxic fumes in a Georgia McDonald's restaurant last week has been attributed to a carbon dioxide leak. Authorities said the leak came from an unconnected bleed valve used to supply the restaurant's soda fountain. The leaking gas built up within the wall cavity and from there seeped into the ladies restroom, where 80-year-old Anne Felton was overcome by the fumes and died.
Carbon dioxide plays a significant role in trapping heat in Earth's atmosphere. The gas is released from human activities like burning fossil fuels, and the concentration of carbon dioxide moves and changes through the seasons. Using observations from NASA's Orbiting Carbon Observatory (OCO-2) satellite, scientists developed a model of the behavior of carbon in the atmosphere from Sept. 1, 2014, to Aug. 31, 2015. Scientists can use models like this one to better understand and predict where concentrations of carbon dioxide could be especially high or low, based on activity on the ground. Credit: NASA's Goddard Space Flight Center/Kathryn Mersmann & Matthew Radcliff Music: "Life Cycles" by Theo Golding [PRS] For more information: https://www.nasa.gov/feature/goddard/2016/eye-popping-vi...
Simple tutorial on how to make Carbon dioxide (CO2) using household items like Baking Soda and Vinegar). It creates really nice volcano and also, it can be used to extinguish flames.
Watch how you can use dry ice and hot water to create an impressive Halloween party trick.
In this video we discuss the transportation of oxygen and carbon dioxide around the bloodstream.
In this video we discuss the transportation of oxygen and carbon dioxide in the bloodstream.
In this video we discuss the transportation of oxygen and carbon dioxide in the bloodstream.
9/9/15
Metal Cathodes employed for Photoreduction of Carbon Dioxide. Eelectrochemical / Electrocatalytic / Photocatalytic/Photoreductio n of Carbon Dioxide
2010-10-09 Biology of Carbon Dioxide - Bud Weiss + Ray Peat
cut your legs off
just below the knees
i cut mine off
right at the throat
if for a moment
you weren't begging me
to drop that knife
and just let go
i keep my scissors
in the junk drawer
and a pair of yours
stuck in my neck
between the blades
you'll find the jugular
cut in line
or stay in check
i can't live without you
i can't breathe another breath
this air is much too thick
without your carbon dioxide
i can't grieve without you
can't let it lie
can't let it rest
i'd rather suffocate us both
in our carbon dioxide
seal the windows
in my bedroom
when i'm done
i'll seal the door
i bought the duct tape,
chalk and bisquee
a scribbled letter
explains what for
i ate half the stricknine
and sleeping pills
prisim colors
and a stomache ache
i left the other half
in the kicthen
for you on a
chinese dinner plate
with a note that reads
if you ever loved me
and continute now
don't wait
follow my example
don't hesitate
i can't fuck without you
i still smell of dirty sex
make me lying dead
beneath our carbon dioxide
i can't forget about you
all i can feel is this regret
i've got my grave decisions