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...
Generally, an EIN number is used to file various IRS business tax returns, open business bank accounts, obtain business licences, etc. The federal tax identification number is nine (9) digits long and is issued in the following format: XX-XXXXXXX. Essentially, it is similar to a Social Security Number (SSN) for an individual, but an EIN number is for businesses and entities.