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Questions and Answers
What happens to some of the rainfall and snowmelt in the drainage basin?
What happens to some of the rainfall and snowmelt in the drainage basin?
- It infiltrates the soil and is eventually transpired by plants or evaporates directly into the atmosphere (correct)
- It forms large puddles on the land surfaces
- It accumulates in the river channels
- It all runs off into the river channels
What accounts for more than three quarters of the annual precipitation over the drainage basin?
What accounts for more than three quarters of the annual precipitation over the drainage basin?
- Runoff into river channels
- Evapotranspiration losses (correct)
- Infiltration into the soil
- Snowmelt
Where does most of the river's flow in the drainage basin come from?
Where does most of the river's flow in the drainage basin come from?
- Runoff from the arid western section of the drainage basin
- Runoff from the wetter eastern part of the drainage basin (correct)
- Evapotranspiration losses
- Infiltration into the soil
