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nutrients | A Wisdom Archive on nutrients | | nutrients A selection of articles related to nutrients | |
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nutrients, Nutrient, Nutrient - Nutrients and the body, Nutrient - Nutrients and the environment
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| ARTICLES RELATED TO nutrients | | | |  nutrients: Encyclopedia II - Food - Food production or acquisitionFood is traditionally obtained through farming, ranching, and fishing, with hunting, foraging and other methods of subsistence locally important for some populations, but minor for others.
In the modern era in developed nations, food supply is increasingly dependent upon agriculture, industrial farming, aquaculture and fish farming techniques. These techniques aim to maximize the amount of food produced while minimizing the cost. The techniques include a reliance on mechanized tools, from the threshing machine and seed drill, to the t ...
See also:Food, Food - Legal definition, Food - Human eating habits, Food - Historical development, Food - Meals, Food - Food production or acquisition, Food - From plants, Food - From animals, Food - From neither animals or plants, Food - Food preparation, Food - Food manufacture, Food - Food trade, Food - Food retailing, Food - Food sufficiency, Food - Food safety, Food - Dietary habits, Food - Nutrients in food Read more here: » Food: Encyclopedia II - Food - Food production or acquisition |
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| | | | | nutrients: Encyclopedia II - Food - Food preparation While some food can be eaten without preparation, many foods undergo some form of preparation for reasons of safety, palatability, or flavor. At the simplest level this may involve washing, cutting, trimming or adding other foods or ingredients, such as spices. It may also involve mixing, heating or cooling, pressure cooking, fermentation, or combination with other food. Most food preparation takes place in a kitchen.
The preparation of animal-based food will usually involve slaughter, evisceration, hanging, portioning and rendering.< ...
See also:Food, Food - Legal definition, Food - Human eating habits, Food - Historical development, Food - Meals, Food - Food production or acquisition, Food - From plants, Food - From animals, Food - From neither animals or plants, Food - Food preparation, Food - Food manufacture, Food - Food trade, Food - Food retailing, Food - Food sufficiency, Food - Food safety, Food - Dietary habits, Food - Nutrients in food Read more here: » Food: Encyclopedia II - Food - Food preparation |
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| | | | | nutrients: Encyclopedia II - Food - Food trade Food is now traded on a global basis. The variety and availability of food is no longer restricted by the diversity of locally grown food or the limitations of the local growing season. Between 1961 and 1999 there has been a 400% increase in worldwide food exports. Some countries are now economically dependent on food exports, which in some cases account for over 80% of all exports.
In 1994 trade liberalisation began when over 100 countries became signatories to the Uruguay Round of the General Agreement on Tariffs and Trade which inc ...
See also:Food, Food - Legal definition, Food - Human eating habits, Food - Historical development, Food - Meals, Food - Food production or acquisition, Food - From plants, Food - From animals, Food - From neither animals or plants, Food - Food preparation, Food - Food manufacture, Food - Food trade, Food - Food retailing, Food - Food sufficiency, Food - Food safety, Food - Dietary habits, Food - Nutrients in food Read more here: » Food: Encyclopedia II - Food - Food trade |
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| | | | | nutrients: Encyclopedia II - Aquarium - History and development
Aquarium - Etymology.
The word aquarium itself is taken directly from the latin aqua, meaning water, with the suffix -rium, meaning "place" or "building".
Aquarium - Ancient practices.
The keeping of fish in confined or artificial environments is a practice with deep roots in history. Ancient Sumerians were known to keep wild-caught fish in ponds, before preparing them for meals. In China, selective breeding of carp into today's popular koi and goldfish is believe ...
See also:Aquarium, Aquarium - History and development, Aquarium - Etymology, Aquarium - Ancient practices, Aquarium - Glass enclosures, Aquarium - Popularization, Aquarium - Function and design, Aquarium - Design, Aquarium - Classifications, Aquarium - Species selection, Aquarium - Source of aquarium inhabitants, Aquarium - Ecology, Aquarium - Nitrogen cycle, Aquarium - Other nutrient cycles, Aquarium - Biological loading, Aquarium - Public aquaria Read more here: » Aquarium: Encyclopedia II - Aquarium - History and development |
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| | | | | nutrients: Encyclopedia II - Sustainable agriculture - Description Sustainable agriculture refers to the ability of a farm to produce perpetually. Among other requirements, this means that any outside inputs employed for agriculture must be available indefinitely, so non-renewable resources are avoided. While air, water, and sunlight are generally available in most geographic locations, crops depend primarily on soil nutrients. When farmers grow and harvest crops, they remove some of these nutrients from the soil. Without replenishment, the land would suffer from nutrient depletion and be unusable for furth ...
See also:Sustainable agriculture, Sustainable agriculture - Description, Sustainable agriculture - Economics, Sustainable agriculture - Methods, Sustainable agriculture - Off-farm impacts, Sustainable agriculture - Urban planning Read more here: » Sustainable agriculture: Encyclopedia II - Sustainable agriculture - Description |
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| | | | | nutrients: Encyclopedia II - Aquarium - Function and design From the outdoor ponds and glass jars of antiquity, modern aquaria have evolved into a wide range of specialized systems. Aquaria can vary in size from a small bowl large enough for a single small fish, to the huge public aquaria that can simulate entire marine ecosystems. The most successful aquaria, as judged by the long-term survivability of its inhabitants, carefully emulate the natural environment ...
See also:Aquarium, Aquarium - History and development, Aquarium - Etymology, Aquarium - Ancient practices, Aquarium - Glass enclosures, Aquarium - Popularization, Aquarium - Function and design, Aquarium - Design, Aquarium - Classifications, Aquarium - Species selection, Aquarium - Source of aquarium inhabitants, Aquarium - Ecology, Aquarium - Nitrogen cycle, Aquarium - Other nutrient cycles, Aquarium - Biological loading, Aquarium - Public aquaria Read more here: » Aquarium: Encyclopedia II - Aquarium - Function and design |
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| | | | | nutrients: Encyclopedia II - Aquarium - Public aquaria Public aquaria are facilities open to the public for viewing of aquatic species in aquaria. Most public aquaria feature a number of smaller tanks, as well as one or more large tank greater in size than could be kept by any home aquarist. The largest tanks hold millions of U.S. gallons of water and can house large species, including dolphins, sharks or beluga whales. Aquatic and semiaquatic animals, including otters and pe ...
See also:Aquarium, Aquarium - History and development, Aquarium - Etymology, Aquarium - Ancient practices, Aquarium - Glass enclosures, Aquarium - Popularization, Aquarium - Function and design, Aquarium - Design, Aquarium - Classifications, Aquarium - Species selection, Aquarium - Source of aquarium inhabitants, Aquarium - Ecology, Aquarium - Nitrogen cycle, Aquarium - Other nutrient cycles, Aquarium - Biological loading, Aquarium - Public aquaria Read more here: » Aquarium: Encyclopedia II - Aquarium - Public aquaria |
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| | | | | nutrients: Encyclopedia II - Aquarium - Ecology Ideal aquarium ecology reproduces the equilibrium found in nature in the closed system of an aquarium. In practice it is virtually impossible to maintain a perfect balance. As an example, a balanced predator-prey relationship is nearly impossible to maintain in even the largest of aquaria. Typically an aquarium keeper must take steps to maintain equilibrium in the small ecosystem contained in his aquarium.
Approximate equilibrium is facilitated by large volumes of water. Any event that perturbs the system pushes an aquarium away from ...
See also:Aquarium, Aquarium - History and development, Aquarium - Etymology, Aquarium - Ancient practices, Aquarium - Glass enclosures, Aquarium - Popularization, Aquarium - Function and design, Aquarium - Design, Aquarium - Classifications, Aquarium - Species selection, Aquarium - Source of aquarium inhabitants, Aquarium - Ecology, Aquarium - Nitrogen cycle, Aquarium - Other nutrient cycles, Aquarium - Biological loading, Aquarium - Public aquaria Read more here: » Aquarium: Encyclopedia II - Aquarium - Ecology |
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| | | | | nutrients: Encyclopedia II - Coral reef - Ecology and biodiversity Coral reefs support an extraordinary amount of biodiversity, although located in nutrient-poor tropical waters. The process of nutrient recycling between corals, zooxanthellae, and other reef organisms provides an explanation for why coral reefs flourish in these waters: recycling ensures that fewer nutrients are needed overall to support the community. Cyanobacteria also provide soluble nitrates for the coral reef through the process of nitrogen fixation. Corals absorb nutrients, including inorganic nitrogen and phosphorus, directly from th ...
See also:Coral reef, Coral reef - Coral Reef Biology, Coral reef - Coral Reef Formations, Coral reef - World-wide distribution of reefs, Coral reef - Ecology and biodiversity, Coral reef - Threats to Reefs, Coral reef - Land development and pollution, Coral reef - Live reef fish trade, Coral reef - Coral bleaching, Coral reef - Destruction worldwide, Coral reef - Protection and restoration of reefs, Coral reef - Marine Protected Areas Read more here: » Coral reef: Encyclopedia II - Coral reef - Ecology and biodiversity |
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| | | | | nutrients: Encyclopedia II - Nitrogen - Applications
Nitrogen - Nitrogen Compounds.
Molecular nitrogen in the atmosphere is relatively non-reactive, but in nature it is slowly converted into biologically (and industrially) useful compounds by some living organisms, notably certain bacteria (see Biological role below). The ability to combine or fix nitrogen is a key feature of modern industrial chemistry, where nitrogen (along with natural gas) is converted into ammonia (via the Haber process). Ammonia, in turn, can be used directly (primarily as a fer ...
See also:Nitrogen, Nitrogen - Notable characteristics, Nitrogen - Applications, Nitrogen - Nitrogen Compounds, Nitrogen - Molecular nitrogen gas and liquid, Nitrogen - History, Nitrogen - Occurrence, Nitrogen - Compounds, Nitrogen - Biological role, Nitrogen - Isotopes, Nitrogen - Precautions Read more here: » Nitrogen: Encyclopedia II - Nitrogen - Applications |
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| | | | | nutrients: Encyclopedia II - Nitrogen - History Nitrogen (Latin nitrum, Greek Nitron meaning "native soda", "genes", "forming") is formally considered to have been discovered by Daniel Rutherford in 1772, who called it noxious air or fixed air. That there was a fraction of air that did not support combustion was well known to the late 18th century chemist. Nitrogen was also studied at about the same time by Carl Wilhelm Scheele, Henry Cavendish, and Joseph Priestley, who referred to it as burnt air or phlogisticated air. Nitrogen gas was inert eno ...
See also:Nitrogen, Nitrogen - Notable characteristics, Nitrogen - Applications, Nitrogen - Nitrogen Compounds, Nitrogen - Molecular nitrogen gas and liquid, Nitrogen - History, Nitrogen - Occurrence, Nitrogen - Compounds, Nitrogen - Biological role, Nitrogen - Isotopes, Nitrogen - Precautions Read more here: » Nitrogen: Encyclopedia II - Nitrogen - History |
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| | | | | | nutrients: Encyclopedia II - Nitrogen - Occurrence Nitrogen is the largest single component of the Earth's atmosphere (78.084% by volume, 75.5% by weight) and is acquired for industrial purposes by the fractional distillation of liquid air or by mechanical means of gaseous air (i.e. pressurised reverse osmosis membrane or PSA (Pressure Swing Adsorption). Compounds that contain this element have been observed in outer space. Nitrogen-14 is created as part of the fusion processes in stars. Nitrogen is a large component of animal waste (for example, guano), usually in the form of urea, uric acid, and c ...
See also:Nitrogen, Nitrogen - Notable characteristics, Nitrogen - Applications, Nitrogen - Nitrogen Compounds, Nitrogen - Molecular nitrogen gas and liquid, Nitrogen - History, Nitrogen - Occurrence, Nitrogen - Compounds, Nitrogen - Biological role, Nitrogen - Isotopes, Nitrogen - Precautions Read more here: » Nitrogen: Encyclopedia II - Nitrogen - Occurrence |
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| | | | | nutrients: Encyclopedia II - Nitrogen - Compounds The main hydride of nitrogen is ammonia (NH3) although hydrazine (N2H4) is also well known. Ammonia is somewhat more basic than water, and in solution forms ammonium ions (NH4+). Liquid ammonia is in fact slightly amphiprotic and forms ammonium and amide ions (NH2-); both amides and nitride (N3-) salts are known, but decompose in water. Singly and doubly substituted compounds of ammonia are called amines. Larger chains, rings and structures of nitrogen hydrides ...
See also:Nitrogen, Nitrogen - Notable characteristics, Nitrogen - Applications, Nitrogen - Nitrogen Compounds, Nitrogen - Molecular nitrogen gas and liquid, Nitrogen - History, Nitrogen - Occurrence, Nitrogen - Compounds, Nitrogen - Biological role, Nitrogen - Isotopes, Nitrogen - Precautions Read more here: » Nitrogen: Encyclopedia II - Nitrogen - Compounds |
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| | | | | nutrients: Encyclopedia II - Nitrogen - Applications
Nitrogen - Nitrogen Compounds.
Molecular nitrogen in the atmosphere is relatively non-reactive, but in nature it is slowly converted into biologically (and industrially) useful compounds by some living organisms, notably certain bacteria (see Biological role below). The ability to combine or fix nitrogen is a key feature of modern industrial chemistry, where nitrogen and natural gas are converted into ammonia via the Haber process. Ammonia, in turn, can be used directly (primarily as a fertilizer), or as a precursor of many other important materials including explosives, largely via the producti ...
See also:Nitrogen, Nitrogen - Notable characteristics, Nitrogen - Applications, Nitrogen - Nitrogen Compounds, Nitrogen - Molecular nitrogen gas and liquid, Nitrogen - The History of Nitrogen, Nitrogen - Occurrence, Nitrogen - Compounds, Nitrogen - Biological role, Nitrogen - Isotopes, Nitrogen - Precautions Read more here: » Nitrogen: Encyclopedia II - Nitrogen - Applications |
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| | | | | nutrients: Encyclopedia II - Nitrogen - The History of Nitrogen Nitrogen (Latin nitrum, Greek Nitron meaning "native soda", "genes", "forming") is formally considered to have been discovered by Daniel Rutherford in 1772, who called it noxious air or fixed air. That there was a fraction of air that did not support combustion was well known to the late 18th century chemist. Nitrogen was also studied at about the same time by Carl Wilhelm Scheele, Henry Cavendish, and Joseph Priestley, who referred to it as burnt air or phlogisticated air. Nitrogen gas was inert eno ...
See also:Nitrogen, Nitrogen - Notable characteristics, Nitrogen - Applications, Nitrogen - Nitrogen Compounds, Nitrogen - Molecular nitrogen gas and liquid, Nitrogen - The History of Nitrogen, Nitrogen - Occurrence, Nitrogen - Compounds, Nitrogen - Biological role, Nitrogen - Isotopes, Nitrogen - Precautions Read more here: » Nitrogen: Encyclopedia II - Nitrogen - The History of Nitrogen |
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| | | | | nutrients: Encyclopedia II - Nitrogen - Occurrence Nitrogen is the largest single component of the Earth's atmosphere (78.084% by volume, 75.5% by weight) and is acquired for industrial purposes by the fractional distillation of liquid air or by mechanical means of gaseous air (i.e. pressurised reverse osmosis membrane or pressure swing adsorption). Compounds that contain this element have been observed in outer space. 14Nitrogen is created as part of the fusion processes in stars. Nitrogen is a large component of animal waste (for example, guano), usually in the form of urea, uric acid, and c ...
See also:Nitrogen, Nitrogen - Notable characteristics, Nitrogen - Applications, Nitrogen - Nitrogen Compounds, Nitrogen - Molecular nitrogen gas and liquid, Nitrogen - The History of Nitrogen, Nitrogen - Occurrence, Nitrogen - Compounds, Nitrogen - Biological role, Nitrogen - Isotopes, Nitrogen - Precautions Read more here: » Nitrogen: Encyclopedia II - Nitrogen - Occurrence |
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| | | | | nutrients: Encyclopedia II - Coral reef - Ecology and biodiversity Coral reefs support an extraordinary ammount of biodiversity, despite often being located in nutrient-poor tropical waters. The process of nutrient recycling between corals, zooxanthellae, and other reef organisms helps provide an explanation for why coral reefs can survive in these waters, since recycling ensures that fewer nutrients are needed overall to support the community. Cyanobacteria also provide nutrients for the coral reef through nitrogen fixation. Corals also absorb nutrients, including nitrogen and phosphorus, directly from the water, and they also eat zoo ...
See also:Coral reef, Coral reef - Coral Reef Biology, Coral reef - Coral Reef Formations, Coral reef - World-wide distribution of reefs, Coral reef - Ecology and biodiversity, Coral reef - Threats to Reefs, Coral reef - Protection and restoration of reefs, Coral reef - Artificial Reefs Read more here: » Coral reef: Encyclopedia II - Coral reef - Ecology and biodiversity |
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