potential acidity
31Properties of water — H2O and HOH redirect here. For other uses, see H2O (disambiguation) and HOH (disambiguation). This article is about the physical and chemical properties of pure water. For general discussion and its distribution and importance in life, see Water …
32PH — is the measure of the acidity or alkalinity of a solution. It is formally a measure of the activity of dissolved hydrogen ions (H+), but for very dilute solutions, the molarity (molar concentration) of H+ may be used as a substitute with little… …
33soil — soil1 soilless, adj. /soyl/, n. 1. the portion of the earth s surface consisting of disintegrated rock and humus. 2. a particular kind of earth: sandy soil. 3. the ground as producing vegetation or as cultivated for its crops: fertile soil. 4. a… …
34plant disease — ▪ plant pathology Introduction an impairment of the normal state of a plant that interrupts or modifies its vital functions. All species of plants, wild and cultivated alike, are subject to disease. Although each species is… …
35Merlot — Medoc Noir redirects here. For the Bordeaux grape also known as Medoc Noir, see Malbec. For other uses, see Merlot (disambiguation). Merlot Merlot grapes on the vine Colour Black …
36Acetic acid — Acetic redirects here. It is not to be confused with Ascetic. Acetic acid …
37global warming — an increase in the earth s average atmospheric temperature that causes corresponding changes in climate and that may result from the greenhouse effect. [1975 80] * * * Potential increase in global average surface temperatures resulting from… …
38therapeutics — /ther euh pyooh tiks/, n. (used with a sing. v.) the branch of medicine concerned with the remedial treatment of disease. [1665 75; see THERAPEUTIC, ICS] * * * Treatment and care to combat disease or alleviate pain or injury. Its tools include… …
39environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
40Chablis wine — For the Chablis vine training system, see Chablis (vine system). Chablis (wine region) Type Appellation d origine contrôlée …
