Not All Stevia Is Created Equally. Stevia can be grouped into three main categories: 1. Green leaf stevia: Of the various types of stevia, this is the least-processed, as the leaves have been dried up and ground into powder form.This form of stevia has been used throughout Japan and South America for centuries as a natural sweetener and health remedy.. Medication interactions: There are certain medications that interact in a negative way with stevia, including: 1  Lithium: Stevia can often act as a diuretic and prevent the bodyâs ability to rid itself of lithium.
population definition: Population is the number of people or animals in a particular place. (noun) An example of population is over eight million people living in New York City....
Population in simpler terms is the number of people in a city or town, region, country or world; population is usually determined by a process called census (a process of collecting, analyzing, compiling and publishing data) This article refers mainly to human population.