Review

Which best describes the importance of an aquifer?

• It holds ground water for human consumption
• It supplies all the water for lakes and rivers
• It provides water for oceans
• FreIt is a source of precipitation.

For infiltration to occur, describe the surface material.

• impermeable
• suspended
• permeable
• resistant 

Recall the water cycle (pictured).  Which process occurs because water molecules are SPEEDING UP?

• Evaporation
• Condensation
• Precipitation
• Runoff

Which part of the water cycle occurs because of impermeable surfaces?

• Evaporation
• Condensation
• Precipitation
• Runoff

Which part of the water cycle occurs because water molecules COOL down?

• Evaporation
• Condensation
• Precipitation
• Runoff

Which represents the distribution of water on Earth?

• 3% freshwater, 97% salt water
• 97% freshwater, 3% salt water
• 71% freshwater, 29% salt water
• 29% freshwater, 71% salt water

What do we call the land area that supplies water to a river system?

• runoff
• recharge
• watershed
• valley

What is the area underground that could hold more water?

• Zone of Saturation
• Zone of Aeration
• Impermeable layer
• Bedrock

The top level of the groundwater 

• Zone of Saturation
• Zone of Aeration
• Water Table
• Aquifer

Pesticides are most likely to be found in runoff from 

• roads
• farm fields
• homes
• factories