Identify the parts of the water cycle (process or thing) in the picture above.
The largest reservoir of freshwater that is available to humans is ____________.
The single most important agent sculpturing Earth's land surface is ____________.
During periods when rain does not fall, rivers are sustained by ____________.
Since the water cycle is balanced, the average annual precipitation worldwide must equal the quantity of water evaporated.
When water vapor condenses, it releases heat energy.
Approximately ____________ percent of Earth's area is represented by oceans and marginal seas.
