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A carbohydrate ( / ˌkɑːrboʊˈhaɪdreɪt /) is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as in water) and thus with the empirical formula Cm(H2O)n (where m may or may not be different from n ), which does not mean the H has covalent bonds with O (for example with CH2O...
Carbon (from Latin carbo 'coal') is a chemical element; it has symbol C and atomic number 6. It is nonmetallic and tetravalent—meaning that its atoms are able to form up to four covalent bonds due to its valence shell exhibiting 4 electrons. It belongs to group 14 of the periodic table.[16] Carbon makes up about 0.025 percent of Earth's ...
Since the 1850s, there are more carbon sources than sinks and therefore the carbon dioxide in Earth's atmosphere is rising. [1] A carbon sink is a natural or artificial process that "removes a greenhouse gas, an aerosol or a precursor of a greenhouse gas from the atmosphere". [2] : 2249 These sinks form an important part of the natural carbon ...
Docosahexaenoic acid ( DHA) is an omega-3 fatty acid that is a primary structural component of the human brain, cerebral cortex, skin, and retina. It is given the fatty acid notation 22:6 (n-3). [1] It can be synthesized from alpha-linolenic acid or obtained directly from maternal milk (breast milk), fatty fish, fish oil, or algae oil.
- 446.7 °C (836.1 °F; 719.8 K)
- −44 °C (−47 °F; 229 K)
- C₂₂H₃₂O₂
- 328.488 g/mol
Photosynthesis ( / ˌfoʊtəˈsɪnθəsɪs / FOH-tə-SINTH-ə-sis) [1] is a system of biological processes by which photosynthetic organisms, such as most plants, algae, and cyanobacteria, convert light energy, typically from sunlight, into the chemical energy necessary to fuel their activities.
Tâi-pak Keng-chè Bûn-hòa Pān-sū-chhù. The Taipei Economic and Cultural Representative Office ( TECRO ), also known as Taipei Economic and Cultural Office ( TECO ), Taipei Representative Office ( TRO) or Taipei Mission, is an alternative diplomatic institution serving as a de facto embassy or a consulate of the Republic of China (ROC ...
This article is about the physical properties of greenhouse gases. For how human activities are adding to greenhouse gases, see Greenhouse gas emissions. Greenhouse gases trap some of the heat that results when sunlight heats the Earth's surface. Three important greenhouse gases are shown symbolically in this image: carbon dioxide, water vapor ...
