Magma can cool to form an igneous rock either on the surface of the Earth-in which case it produces a volcanic or extrusive igneous rock, or beneath the surface of the Earth, - in which case it produces a plutonic or intrusive igneous rock.
Applying for an EIN number is free of charge and can be completed online. I've linked the IRS area below where you'll learn more about the application process. http://www.irs.gov/businesses/small/arti...
There is an online form for applying for an EIN. However, the online form requires you to enter your current Social Security Number or ITIN, which you do not have. Therefore, it's not possible to use the online form. You will need to call the IRS and ask them to issue the EIN.