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.
Understanding Cervical Cancer Screening Test Results cer â¢ vix, n. the lower, narrow portion of the uterus where it joins with the top end of the vagina. Finding and treating abnormal cells in the cervix before they develop into cancer can prevent cervical cancer.