Holes, and Dirt

3m x 3m x 3m

$3m \times 3m \times 3m = 3 \times 3 \times 3 \;\;m^3 = 27m^3$

There is NO dirt in a hole....that is why it is a hole.    The volume of the hole (or the volume of air in the hole...if it is here on earth) is given by Melody's answer.

I wish this question would stop appearing.