A power forward is a forward who possesses above average offensive skills and plays a tough... A power forward is a forward who possesses above average offensive skills and plays a tough, physical game. Most of the time, power forwards are physically large, but some players are referred to...
The soil pH is a measure of the acidity or alkalinity in soils. pH is defined as the negative logarithm (base 10) of the activity of hydronium ions (H+. or, more precisely, H. 3O+. aq) in a solution. In water, it normally ranges from -1 to 14, with 7 being neutral. A pH below 7 is acidic and above 7 is alkaline.
On the pH scale, which ranges from 0 on the acidic end to 14 on the alkaline end, a solution is neutral if its pH is 7. At pH 7, water contains equal concentrations of H+ and OH-ions. Substances with a pH less than 7 are acidic because they contain a higher concentration of H+ ions.