2.1 Groundwater

What is the best definition of a water table?

• The level to which a river rises when it floods

• The boundary between the land and the ocean

• The top of the saturated zone in an aquifer

• The bottom of the saturated zone in an aquifer

• The top of the unsaturated zone in an aquifer

What would cause the water table to lower?

• High rates of evaporation and transpiration

• Low rates of evaporation and transpiration

• Increasing amounts of runoff

• A heavy rainstorm with a lot of precipitation

What is infiltration?

• The process by which water sinks into the ground

• The zone where there are still air spaces left between the particles.

• The process by which water vapor turns into liquid water and forms fog or clouds.

• The process by which water does not sink into the ground, but rather travels along the surface.

Which soil would have the greatest permeability rate after a rainstorm?

• sand (0.02 cm)

• silt (0.002 cm)

• clay (0.0002 cm)

500 mL of water is added to each tube and allowed to drain out. Which container would have the highest retention of water after it drained? (particle size gets bigger as you move to the right)

• A

• B

• C

• D

• They would all be the same in terms of retention

How would the porosity of the poorly sorted sediment compare to the well sorted sediment?

• It would be greater in the poorly sorted sediment

• It would be less in the poorly sorted sediment

• It would be the same in both

How does the porosity of frozen soil compare with unfrozen soil?

• It is less in the frozen soil

• It is greater in the frozen soil

• The porosity of both would be the same

Water that flows over the land to streams, rivers, and lakes

• Evaporation

• Condensation

• Precipitation

• Runoff

Water that is found underground in the cracks and spaces in soil, sand and rock is called:

• Groundwater

• River

• Surface water

• Snow

Which of the following are groundwater?

• Lakes, ponds, creeks streams, ocean, rivers

• Wells, water table, aquifers