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The diameter of the moon is approximately one fourth of the diameter of the earth. What fraction of the volume of the earth is the volume of the moon?
Volume of a sphere = (4/3)πr3
Given, diameter of the moon is approximately one fourth of the diameter of the earth
Radius of moon = 1/4 × radius of the earth.
Ratio of their volume
Volume of the moon is 1/64th times the volume of the earth.