The hydrological cycle of the earth is the sum total of all processes in which water moves from the land and ocean surface to the atmosphere and back in form of precipitation. ... The plants themselves transpire and aid in the creation of a major amount of water vapor through evapotranspiration processes.

How does the hydrological system work?

The hydrologic cycle begins with the evaporation of water from the surface of the ocean. As moist air is lifted, it cools and water vapor condenses to form clouds. ... Groundwater either seeps its way to into the oceans, rivers, and streams, or is released back into the atmosphere through transpiration.

What are the major parts of the hydrologic system?

Global scale From a global perspective, the hydrologic cycle can be considered to be comprised of three major systems; the oceans, the atmosphere, and the landsphere. Precipitation, runoff and evaporation are the principal processes that transmit water from one system to the other.