Due to the Coriolis Force, an effect caused by the earth's rotation, tornadoes spin counterclockwise in the northern hemisphere, clockwise in the southern.
(an effect; caused; by the earth's rotation) (tornadoes spin counterclockwise in the northern hemisphere; clockwise; L:in the southern)
an effect tornadoes spin counterclockwise in the northern hemisphere
caused clockwise
by the earth's rotation
L:in the southern