Teenage Depression statistics show that teen depression is a common problem 1  : About 20 percent of teens will experience teen depression before they reach adulthood. 2  Between 10 to 15 percent of teenagers have some symptoms of teen depression at any one time.
1. alkaline-relating to or containing an alkali; having a pH greater than 7; alkaline soils derived from chalk or limestone. alkalic. chemical science, chemistry-the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions.
An alkaline is any substance with a pH rating lower than 7; that is, any substance with fewer hydrogen ions than pure water. This is opposed to an acid, which is any substance with more hydrogen ions than water. The further the pH is from 7 the more of an acid or alkaline the substance is, depending on which way you're going.