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
This cycle of moving and transforming water molecules from liquid to vapor and back to liquid again is called the hydrologic (water) cycle. In the form with which we are most concerned, water molecules travel from ocean to atmosphere, to land, and then back to the ocean.