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20 godz. temu · Fact – unique data (e.g. symbols for Excel formula, or the parts that make up a learning objective) Concept – a category that includes multiple examples (e.g. Excel formulas, or the various types/theories of instructional design) Process – a flow of events or activities (e.g. how a spreadsheet works, or the five phases in ADDIE)
20 godz. temu · Definition and overview. Hygiene is a practice related to lifestyle, cleanliness, health, and medicine.In medicine and everyday life, hygiene practices are preventive measures that reduce the incidence and spread of germs leading to disease.. Hygiene practices vary from one culture to another.. In the manufacturing of food, pharmaceuticals, cosmetics, and other products, good hygiene is a ...
20 godz. temu · Properties Form and structure Gallium crystals Most metals are shiny and lustrous, at least when polished, or fractured. Sheets of metal thicker than a few micrometres appear opaque, but gold leaf transmits green light. This is due to the freely moving electrons which reflect light. Although most elemental metals have higher densities than nonmetals, there is a wide variation in their ...
