Pay Equity: Empirical Inquiries answers these questions in 10 original research papers. The papers explore race- and gender-based differences in wages, at the level both of individuals and of occupations.
Okra, or Gumbo, from Africa. 0kra (Hibiscus esculentus) is also called gumbo in this country, although the latter term is more often applied to soups or other dishes which contain okra. Both of these names are of African origin. Gumbo is believed to be a corruption of a Portuguese corruption, quingombo, of the word quillobo, native name for the plant in the Congo and Angola area of Africa.
Answer: Originally, chewing gum was made from the  latex sap of the sapodilla tree (native to Central America). This sap was called chicle. Other natural gum bases may be used, such as sorva and jelutong. Sometimes beeswax or paraffin wax is used as a gum base. After World War II, chemists learned to make synthetic rubber, which came to replace most natural rubber in chewing gum (e.g., polyethylene and polyvinyl acetate). The last U.S. manufacturer to use chicle is Glee Gum. In addition to the gum base, chewing gum contains sweeteners, flavorings, and softeners. Softeners are ingredients such as glycerin or vegetable oil that are used to blend the other ingredients and help prevent the gum from becoming hard or stiff.