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Fire is one of the four classical elements in ancient Greek philosophy and science. It was commonly associated with the qualities of energy, assertiveness, and passion. In one Greek myth, Prometheus stole fire from the gods to protect the otherwise helpless humans, but was punished for this charity.
A view of the lake from the scenic overlook of Pico do Barrosa The fine, sedimentary beach of Lagoa do Fogo, with view of crater rim. Lagoa do Fogo is one of the largest of the waterbodies in the Azores, and occupies the central caldera of the Água de Pau Massif, in the central area of the island of São Miguel. [4]
Carbonic anhydrase, an enzyme that requires zinc (gray sphere near the center of this image), is essential for exhalation of carbon dioxide.. In the context of nutrition, a mineral is a chemical element.
Water is an inorganic compound with the chemical formula H 2 O.It is a transparent, tasteless, odorless, [c] and nearly colorless chemical substance.It is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a solvent [20]).
An essential amino acid is an amino acid that is required by an organism but cannot be synthesized de novo by it, and therefore must be supplied in its diet. Out of the twenty standard protein-producing amino acids, nine cannot be endogenously synthesized by humans: phenylalanine , valine , threonine , tryptophan , methionine , leucine ...
Nitrogen fertilizer being applied to growing corn in a contoured, no-tilled field in Iowa.. Nutrient management is the science and practice directed to link soil, crop, weather, and hydrologic factors with cultural, irrigation, and soil and water conservation practices to achieve optimal nutrient use efficiency, crop yields, crop quality, and economic returns, while reducing off-site transport ...
Volcán de Agua (also known as Junajpú by Maya) is an extinct stratovolcano located in the departments of Sacatepéquez and Escuintla in Guatemala. At 3,760 m (12,340 ft) , Agua Volcano towers more than 3,500 m (11,500 ft) above the Pacific coastal plain to the south and 2,000 m (6,600 ft) above the Guatemalan Highlands to the north.
Potassium serves as an activator of enzymes used in photosynthesis and respiration. [6] Potassium is used to build cellulose and aids in photosynthesis by the formation of a chlorophyll precursor. The potassium ion (K + ) is highly mobile and can aid in balancing the anion (negative) charges within the plant.