Ground water.
This is known as ground water.
The underground water that fills opening in soil and cracks in layers of rocks is called ground water.
An underground layer of spongy rocks that holds water is an aquifer.
The underground water that fills opening in soil and cracks in layers of rocks is called ground water.
It would be called a moonquake.
Underground water is called underground water, because it is "underground" not because it is fresh or salt. You can have underground salt water reservoirs just like you can have fresh water ones.
Underground water is called underground water, because it is "underground" not because it is fresh or salt. You can have underground salt water reservoirs just like you can have fresh water ones.
under bodies of water
Lava. (When it is underground it is called magma)
It is all the underground water, the water in soil and in (actually between) deep rocks.
Underground water that is held in the soil and in pervious rocks.
Natural underground reserves of fresh water are generally called aquifers.