Final answer:
In Mark Time, the balls of the feet are raised about 2-4 inches above the ground, mirroring the motion of foot-tapping, helping marchers to maintain rhythm and posture without advancing.
Step-by-step explanation:
The student is asking about a movement called Mark Time, which is a marching technique. In Mark Time, the balls of the feet are slightly raised above the ground, typically by about 2-4 inches, to maintain a marching posture without advancing forward. This technique is essential for keeping the rhythm and staying in formation. It requires the marcher to lift the foot so that the sole is just above the ground, similar to foot-tapping or jumping, and then lower it back down without changing location, thus maintaining posture while continuing to 'march' in place.