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
The hydrologic cycle is the term used to describe how water travels throughout the world system, from the surface to the atmosphere and back again. Over 95% of the planet's water resides in the earth's oceans and seas. The sun heats the oceans, causing water to evaporate into the atmosphere.