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16 godz. temu · Ammonia is an inorganic chemical compound of nitrogen and hydrogen with the formula N H 3.A stable binary hydride and the simplest pnictogen hydride, ammonia is a colourless gas with a distinctive pungent smell. Biologically, it is a common nitrogenous waste, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to fertilisers.
16 godz. temu · A metal (from Ancient Greek μέταλλον (métallon) 'mine, quarry, metal') is a material that when polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. These properties are all associated with having electrons available at the Fermi level, as against nonmetallic materials which do not.: Chpt 8 & 19 : Chpt 7 & 8 Metals are typically ...
16 godz. temu · Schizophrenia is a mental disorder characterized by reoccurring episodes of psychosis that are correlated with a general misperception of reality. Other common signs include hallucinations (typically hearing voices), delusions (i.e., paranoia), disorganized thinking and behavior, and flat or inappropriate affect. Symptoms develop gradually and typically begin during young adulthood and are ...
16 godz. temu · Etymology. The word ant and the archaic word emmet are derived from ante, emete of Middle English, which come from ǣmette of Old English; these are all related to Low Saxon e(e)mt, empe and varieties (Old Saxon emeta) and to German Ameise (Old High German āmeiza).All of these words come from West Germanic * ǣmaitjōn, and the original meaning of the word was "the biter" (from Proto-Germanic ...
16 godz. temu · Influenza, commonly known as "the flu" or just "flu", is an infectious disease caused by influenza viruses.Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue.These symptoms begin one to four (typically two) days after exposure to the virus and last for about two to eight days.
16 godz. temu · Sign of different coexisting school types on a school complex in Germany. Education in Germany is primarily the responsibility of individual German states (Länder), with the federal government only playing a minor role.. While kindergarten (nursery school) is optional, formal education is compulsory for all children ages 6 to 18. Students can complete three types of school leaving ...
16 godz. temu · The timeline of historic inventions is a chronological list of particularly important or significant technological inventions and their inventors, where known. [a] History of technology By technological eras Premodern Prehistoric Stone Age (lithic) Neolithic Revolution Copper Age Bronze Age Iron Age Ancient Modern Proto-industrialization First Industrial Revolution Standardization Second ...
