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.
When we spray perfume into the air, we smell the particles of the perfume. Are those particles a liquid or a gas? Some of us think that it is small, minute droplets of perfume liquid (like steam is condensed water vapor in the form of liquid. Some of us think that since the perfume is volatile, that the particles that we are smelling are gas particles that have evaporated from the liquid perfume.