Cervical cancer is caused by severe abnormal changes in the cells of the cervix. Most precancerous or cancerous cell changes occur in the cervix at the transformation zone, because these cells normally undergo constant change.
A balk in baseball is any action by the pitcher that violates the balk rule, which restricts the actions of the pitcher when there is at least one runner on base. The purpose of the balk rule is to protect the runner or runners from being deceived by the pitcher.
BALKBALL MARK BALL DIAMETER The United States Golf Association specifies that a golf ball must weigh no more than 1.620 ounces (45.93g), be spherical in shape and be no less than 1.68-inches (42.7mm) in diameter. This is called The American Ball. The British Ball is a teensy bit smaller, at 1.62-inches (41.1mm).