An aquifer is an underground accumulation of water.
to keep all the rocks in one place
rocks
Igneous rocks are formed by the solidification of molten materials.
Rocks in the sea are typically referred to as "seabed rocks" or simply "underwater rocks." They can also be called "reef formations" or "marine rocks."
An aquifer is an underground accumulation of water.
pit
A geyser is a vent that erupts water and steam. There are also underground lakes and aquifers.
A Quarry
It is a stone quarry.
a mine
When the plates underground ( not the eating plates ) collide it causes what we call a tremor or simply an earthquake. This can also happen underwater but we call it a tsunami.
When the plates underground ( not the eating plates ) collide it causes what we call a tremor or simply an earthquake. This can also happen underwater but we call it a tsunami.
If it is below the water table, it is an aquifer. Otherwise I think it is just called an underground resevoir.
to keep all the rocks in one place
they call it that because it was underground and its was a rail road
Americans call them 'The Subway', the British call them 'The Underground' or 'The Tube'.