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
o the water cycle or hydrologic cycle (see graphic below) is the driving force behind WED (weathering, erosion, and deposition) o winds also help form the surface landscape. o But without gravity and the sun this whole process would not occur.