miércoles, 16 de noviembre de 2016

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.



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