because coal is deep inside the earth
as coal is made of pplant remains that have been buried long ago,it is so deep inside earth.
very deep
we dont say a fix depth of underground mine becoz that is depends on geological conditions of the area where we mined and also depends the property of mineral which have to be mined. Companies engaged in this industry extract coal that lies 200 to 1,000 feet below the earth's surface, though some mines are as deep as 2,000 feet.
Depths of coal seams vary from place to place. The first coal mine in the US was in Midlothian VA, near Richmond. Coal was present on the surface- just pick it up. Later mines in that area were about 360 ft deep. Other mines are deeper- but much coal is still mined from the surface in high wall or long wall mining.
It forms deep inside the Earth's surface
as coal is made of pplant remains that have been buried long ago,it is so deep inside earth.
By mining deep inside the earth. simple!!
very deep
Victorian coal mines could extend to depths of several hundred feet underground, depending on the specific location and vein of coal being mined. Some mines reached depths of over 1,000 feet. Workers often faced dangerous conditions due to collapses, flooding, and poor ventilation.
They collect coal by coal mines and drilling into the Earth under lots of layers of rocks and soil.
coal miners son
we dont say a fix depth of underground mine becoz that is depends on geological conditions of the area where we mined and also depends the property of mineral which have to be mined. Companies engaged in this industry extract coal that lies 200 to 1,000 feet below the earth's surface, though some mines are as deep as 2,000 feet.
Depths of coal seams vary from place to place. The first coal mine in the US was in Midlothian VA, near Richmond. Coal was present on the surface- just pick it up. Later mines in that area were about 360 ft deep. Other mines are deeper- but much coal is still mined from the surface in high wall or long wall mining.
When magma cools deep inside earth, igneous rockforms.
deep inside the earth
Coal is a sedimentary rock which is made of small rocks,dead plants and the fossils of dead animals which are buried deep in the ground.That is why it is deep in the ground. = )
Think about this. To get coal you have to go deep in the earth to dig out the coal. Mines have gasses and they can cave in if the support structure isn't correct. Sometimes the gasses build up and act like a bomb explosions happen trapping and killing miners. It is a dirty tough job that also has health problems because of the coal dust in the lungs.