Section 1:  Water Resources

Chapter 11 Section 1 Presentation
File Size:	1667 kb
File Type:	ppt

Download File

---

Key Terms:

• surface water
• river system
  
• watershed
  
• groundwater
  
• aquifer
  
• porosity
  
• permeability
  
• ​recharge zone
  

Main Ideas:

• Only a small fraction of Earth's water supply is fresh water.  The two main sources of fresh water are surface water and groundwater.
• River systems drain the land that makes up a watershed.  The amount of water in a river system can vary in different seasons and from year to year.
  
• Groundwater accumulates in underground formations called aquifers.  Surface water enters an aquifer through the aquifer's recharge zone.
  
• If the water in an aquifer is pumped out faster than it is replenished, the water table drops, which can affect humans and animals that depend on the groundwater.