Currently, approximately 17% of electricity worldwide is produced by nuclear power plants, but in some countries, like France, over 75% of their electricity is produced by nuclear power (How Stuff Works). The United States, on the other hand, only produces about 15% of the electricity from nuclear power. Nuclear power plants use pellets to fuel the plants. A pellet contains approximately 3% U-235 that is encased in a ceramic matrix. Refueling the Reactor Core. Source: P. A. Scholle & D. S. Ulmer-Scholle, 1997, SEPM Photo CD-14, Environmental Sciences 5, SEPM, Tulsa, OK.
Definition of cervix. plural. cervices. play \ËsÉr-vÉ-ËsÄz, (Ë)sÉr-ËvÄ«-(Ë)sÄz\ or. cervixes. 1 : neck; especially : the back part of the neck. 2 : a constricted portion of an organ or part; especially : the narrow outer end of the uterus.
Cervical polyps are small, elongated tumors that grow on the cervix. The cervix is the narrow canal at the bottom of the uterus that extends into the vagina. The cervix connects the uterine cavity and the upper portion of the vagina.