In the tectonic cycle, new but recycled lithosphere rises to the ground at boundaries and can be subducted at boundaries.

In the tectonic cycle, new but recycled lithosphere rises to the ground at convergent boundaries and can be subducted at divergent boundaries.
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With any turning vehicle, the rear wheels follow a shorter path than the front wheels. the longer the vehicle is, the greater the difference will be. truck drivers initially swing out before making a turn. what isn't shown in this illustration is as car straightens out, the front wheels must travel a greater distance and the tail end drags on the shortest path.

The answer is to reassure the reader about dangers of mad cow disease.