FASB, Financial Accounting Standards Board. XBRL, or eXtensible Business Reporting Language, is an XML standard for tagging business and financial reports to increase the transparency and accessibility of business information by using a uniform format.
Continental drift takes place because continents sit on crustal plates which float on the Earth's magma, and the magma has convection currents in it which push against the plates and cause them to move, slowly but inexorably.
Continental drift is the slow movement of the Earth's continents towards and away from each other. continental drift. the theory that the earth's continents move gradually over the surface of the planet on a substratum of magma. continental drift in American English. the theory that continents slowly shift their positions as a result of currents in the molten rocks of the earth's mantle, plate tectonics, etc.