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
As the water vapor cooled at the top of the container, it formed tiny water droplets. This process is called condensation, the process of water vapor changing into liquid. The hydrologic cycle is one mechanism for distributing water and heat on Earth. The oceans play an important role in the cycle. Water evaporates from the ocean and, in some instances, the winds carry the water vapor inland.