A social science that studies how individuals, governments, firms ... An approach to economics that relates supply and demand to an ... The labor market refers to the supply and demand for labor, in ... A market where information is not quickly disclosed to all participants ... An economic theory that outlines how a steady economic growth ... A branch of microeconomics that explores how businesses and institutions ...
Tannis root, with its mystic/magic property and bad smell, is simply a clever plot device used by author Ira Levin to demonstrate the power of the devil worshipers.
Tannic acid (Acidum tannicum), a commercial form of tannin, is a polyphenol. Its weak acidity (pKa around 10) is due to these phenol groups in the structure. Tannic acid is a basic ingredient in the chemical staining of wood. The tannic acid or tannin is already present in woods like oak, walnut, and mahogany.