None. Since it is a hole, there is no dirt in it. A hole, by definition, must be empty.
36 cubic feet of dirt.
It's a hole, the dirt has been taken out of it. So, none.
None but the volume of space taken can be calculated
I'm assuming you mean one meter deep with a one square meter footprint. The answer is 1*1*1=1m^3 = one cubic meter. Actually, that is how much dirt was taken out to make the hole. There should be no dirt in the hole, otherwise it wouldn't be a hole.
A hole does not have dirt!
There is no dirt. It's a hole.
none there is no dirt in a hole
There's no dirt in it since it's a hole.
There is no dirt in a hole that is 3 feet deep and six inches in diameter.
None because its a hole. There is no dirt, it's a hole.
None. All the dirt is removed to make the hole!
There is 98.17477042 cubic feet of dirt in a 5 foot deep hole that is 5 foot across.