EXTRACTING MINERALS FORM THE EARTH'S CRUST
A deposit is an area where there are rocks and minerals.
There are three types of extracting minerals:
1) OPEN MINES: minerals are taken by cutting the mountains.
2) UNDERGROUND MINES: minerals are under the ground.
3) DRILLING: humans make holes in the ground to take liquids o gases.
No hay comentarios:
Publicar un comentario