The soil pH is a measure of the acidity or alkalinity in soils. 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. Soil pH is considered a master variable in soils as it controls many chemical processes that take place.
3. Cultural Factor : It is an established fact that there is an intimate connection between our beliefs and social institutions, our values and social relationships. Values, beliefs, ideas, institutions are the basic elements of a culture.
1 Five Global Factors (16PF) 2  Extraversion (Extraversion vs. Introversion) : examines general social participation level. 3  Extraverts tend to be people oriented and seek out relationships with others. (A+, F+, H+, N-, Q2-) 4  Introverts tend to be less outgoing, spending more time on their own than in the company of others.