The diameter of the average cell in the human body is 1 x 10-5 meters. The diameter of a grain of sand is about 2 x 10-4 meters. How many times longer is the diameter of a grain of sand than the diameter of the average cell in the human body? Show your work.The diameter of the average cell in the human body is 1 x 10-5 meters. The diameter of a grain of sand is about 2 x 10-4 meters. How many times longer is the diameter of a grain of sand than the diameter of the average cell in the human body? Show your work.