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...
While the IRS does issue Employer Identification Numbers (EINs), these are merely a unique identifier, similar to a Social Security number for an individual. Applying for and receiving an EIN says nothing about the organization's tax status; however, your organization needs an EIN to apply for tax exemption.