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Doubly labeled water is water in which both the hydrogen and the oxygen have been partly or completely replaced (i.e. labeled) with an uncommon isotope of these elements for tracing purposes. In practice, for both practical and safety reasons, almost all recent applications of the "doubly labeled water" (DLW) method use water labeled with heavy ...
Summary. Description. Carbon dioxide pressure-temperature phase diagram.svg. English: Phase diagram of CO 2 (carbon dioxide). X axis is temperature in kelvin; Y axis is pressure in bar. Date. 30 November 2010. Source. Commons, Carbon dioxide pressure-temperature phase diagram.jpg.
File:Comparison carbon dioxide water phase diagrams.svg. Size of this PNG preview of this SVG file: 512 × 224 pixels. Other resolutions: 320 × 140 pixels | 640 × 280 pixels | 1,024 × 448 pixels | 1,280 × 560 pixels | 2,560 × 1,120 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.
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Carbon dioxide is a chemical compound with the chemical formula CO2. It is made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature and at normally-encountered concentrations it is odorless. As the source of carbon in the carbon cycle, atmospheric CO 2 is ...
This blows off or retains carbon dioxide (and thus carbonic acid) in the blood plasma as required. [5] [8] Metabolic component: The third line of defense is slow, best measured by the base excess, [9] and mostly depends on the renal system which can add or remove bicarbonate ions (HCO − 3) to or from the ECF. [5]
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The carbon cycle is that part of the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of Earth. Other major biogeochemical cycles include the nitrogen cycle and the water cycle. Carbon is the main component of biological compounds as well as a major component of many rocks ...