CBO makes its estimates of potential output on the basis of data on capital, labor, productivity, and actual GDP; statistical and other modeling methods for assessing cyclical influences and long-term trends in the economy; and analyses of the economic effects of federal tax and spending policies.
The hydrologic cycle is driven primarily by I solar energy II mechanical energy from ECOLOGY 1 at Indiana State University
Because of this ability the earthâs water passes through what is called the hydrologic cycle this model demonstrates the movement of water from three worldwide reservoirs-the atmosphere, the surface, and the earthâs crust.