I believe they were digging to see just how far they could actually dig.
It is a stone quarry.
Dug.
The Second Form of Dig Is 'Dug'... As Its All Four Forms Are... Dig, Dug, Dug & Digging...
A shaft is a hole dug in a mine.
That is hard to say because not all holes are even seen. The deepest hole was probably dug by some sort of burrowing animal or insect.
I/you/we/they dig. He/she/it digs. The present participle is digging.
A coal mine is a place where coal is dug out of the earth. Some mines are completely underground and depend on tunnels to take miners to the coal. Other places, known as strip mines, are open pits in the ground where the coal is dug out.
The past tense of dig is dug. My dog dug up my garden just yesterday.
No, you would not. You would burn when you hit the centre of the earth. Even if the Earth did not have a heated centre, you would not hit China unless you lived in the US and dug a perfectly straight line. No, you would not. You would burn when you hit the centre of the earth. Even if the Earth did not have a heated centre, you would not hit China unless you lived in the US and dug a perfectly straight line. No, you wouldn't!!!! The US is in the Northern hemisphere. So is China. Digging through the centre of the earth would land you in the SOUTHERN hemisphere.
No. The deepest hole ever drilled only made it a few miles into the crust before the heat stopped the equipment from working properly.
a place where stone is dug out is a mine or a quarry
Sapphires are dug from the earth in a similar fashion to diamonds. They are located in Montana, North Carolina, and the island of Madagascar.