Prerequisites for nursing school depend on the school, with baccalaureate programs requiring more courses, in general, than associate degree programs. Usual courses include three years of math, three years of science, including biology and chemistry, four years of English and two years of language.
Phthalates are a group of chemicals used in hundreds of products. The phthalate commonly used in fragrance products is diethyl phthalate, or DEP. DEP does not pose known risks for human health as it is currently used in cosmetics and fragrances. To learn more, see â Phthalates and Cosmetic Products .â.
The most concentrated are perfume oils. They have been pressed out, steamed out or chemically separated out of a plant, flower or fruit [source: Sell ]. In perfume oil, fragrance molecules are dissolved in 98 percent alcohol and 2 percent water. Everything else is alcohol-diluted perfume oil.ere are some classifications you may have encountered: 1  Floral: smells like flowers. 2  Fruity: smells like fruit, including citrus. 3  Green: fresh grass or leaves. 4  Herbaceous: like any variety of herbs. 5  Woody: like different types of wood. 6  Amber: like tree resin. 7  Animalic: bodily smells.