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Alkaline Soil , alkaline soil Soil with a pH greater than 7.0. Degrees of soil alkalinity are recognized. The USDA lists soils with a pH 7.4–7.8 as mildly alkaline;… F , F, f [Called ‘eff’]. The 6th LETTER of the Roman ALPHABET as used for English. It originated in the Phoenician symbol waw, a vertical line forking at… Ph , pH is a measure of the acidity or alkalinity of a solution. The variability of pH can have a dramatic effect on geochemical processes (e.g., weatheri… Saline-sodic Soil , saline-sodic soil Soil that contains more than 15 per cent exchangeable sodium, a saturation extract with a conductivity of more than 0.4 siemens per… Phenolphthalein , phenolphthalein A dye used as an acid-base indicator. It is colourless below pH 8 and red above pH 9.6. It is used in titrations involving weak acids… Autarchy , autarchy absolute sovereignty. XVII. — Gr. autarkhíā, f. aútarkhos, f. autós AUTO- + árkhein rule; see -Y2.
autarky self-sufficiency. XVII. — Gr. aut…
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apo(ph)thegm