Urinary incontinence and, less commonly, fecal incontinence, plague some new mothers shortly after giving birth. The inadvertent passage of urine, especially when laughing, coughing or straining, usually is caused by the stretching of the base of the bladder during pregnancy and delivery.
Best Answer: The focus of an earthquake is the point beneath Earth's surface where rock breaks under stress and the plates shift and that is what causes the earthquake. An earthquake is when the surface of the earth is shaking because of rapid movement of the rocky outer layer of the earth.
Plural focuses or foci (fÅâ²sÄ«â², fÅâ²kÄ«â²) 1. A point at which rays of light come together or from which they appear to spread apart, as after passing through a lens. 2. The degree of clarity with which an eye or optical instrument produces an image: a telescope with excellent focus.