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Baking Powder Definition Baking powder is a mixture of baking soda, a nonreactive filler, and at least one slightly acidic compound (such as cream of…

Urban horticulture is the science and art of promoting the successful growth and development of ornamental plants, turf, vegetables and fruit in the urban environment.…

Volcanic Ash Definition Volcanic ash is a combination of fine particles made of rock, tiny strands of supercooled lava called volcanic glass, and minerals. It…

Vertical farming or high-rise farming is a proposed indoor, urban farming technology involving large-scale agricultural production in multi-story buildings. Vertical farming is the practice of…

Calcium Hydroxide Definition Calcium hydroxide is also called slaked lime, Ca(OH)2, which is obtained by the action of water on calcium oxide. It is colorless…

Rational Numbers can be written as a ratio of one number to another. The name rational is based on the word ‘ratio.’ A ratio is…

Ammonium Carbonate Definition Ammonium carbonate is an unstable pungent soluble white powder that is a double salt of ammonium bicarbonate and ammonium carbamate: used in…

There are four basic properties of numbers: commutative, associative, distributive, and identity. Basically, there are three properties. These are the commutative, associative, and the distributive…

Progenitor Cell Definition Progenitor cell is a cell that originates from a stem cell and differentiates into a more specialized cell. A progenitor cell is…

Silica Fume Definition Silica fume is a co-product from the production of silicon or ferrosilicon metal. Silica fume is a mineral admixture, a very fine…

Nile River, the longest river in the world, called the father of African rivers. It rises south of the Equator and flows northward through northeastern…

Neurotrophin Definition Neurotrophins (neurotrophic factors) are proteins which induce the survival of neurons and are found in the blood stream. Neurotrophins are capable of signaling…