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Read the 10 facts about carbon and match the 2 parts of each statement. Organic ChemistryLife on earth depends on the chemical element carbon, which is present in every living thing. Carbon is so important, it forms the basis for two branches of chemistry, organic chemistry and biochemistry. 10 Carbon Facts The Chemical Basis for Life1. Carbon is the basis for organic chemistry 2. Carbon is a nonmetal that can bond with itself and many other chemical elements, 3. Elemental carbon can take the form of one of the hardest substances (diamond) 4. Carbon is made in the interiors of stars, 5. Carbon compounds have limitless uses. In its elemental form, diamond is a gemstone and used for drilling/cutting; graphite is used in pencils, as a lubricant, and to protect against rust; 6. Carbon has the highest melting/sublimation point of the elements. The melting point of diamond is ~3550°C, 7. Pure carbon exists free in nature 8. The origin of the name 'carbon' comes from the Latin word carbo, for charcoal. 9. Pure carbon is considered non-toxic, 10. Carbon is the fourth most abundant element in the universe - a as it occurs in all living organisms. b or one of the softest (graphite 48 c though it was not produced in the Big Bang. d and has been known since prehistoric time.e forming nearly ten million compounds. f hydrogen, helium, and oxygen are found in higher amounts, by mass. g although inhalation of fine particles, such as soot, can damage lung tissue. h The German and French words for charcoal are similar. i while charcoal is used to remove toxins, tastes, and odors. j with the sublimation point of carbon around 3800°C.
ES of any type in its development are four typical stages (phases).The first is the stage of accumulation of deviations from the normal state or process. In other words, this is the stage of the emergence of ES, which can last for days, months, sometimes - years and decades, and in the case of earthquakes and volcanic eruptions - a century.
The second is the initiation of an emergency event, which is the basis of the ES.The third is the process of an emergency event, during which the release of risk factors (energy or substance) that adversely affects the population, facilities and the environment.The fourth is the stage of attenuation (by the action of residual factors and prevailing emergency conditions), which chronologically covers the period from the overlap (restriction) of the source of danger-the localization of an emergency situation, to the complete elimination of its direct and indirect consequences, including the entire chain of secondary, tertiary, etc. consequences. This phase for some ES may start on time even before the completion of the third phase. The duration of this stage can be years, or even decades.