Given the task definition and input, reply with output. In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

A small value for the Rossby number indicates a significant effect caused by this force. Its root cause is the unequal rates of rotation for the Earth; the fastest rate is at the equator thus causing an object traveling south from the equator to deviate westward. The effect of this force is proportional to two times the rotation rate of the Earth times the sine of the angle of the latitude, thus this force causes no effect at the equator. For 10 points, name this apparent deflection of an object by inertial forces in a rotating frame of reference which is partially responsible for the rotation of hurricanes but not the flow of water in a toilet.

Science