33. Occurrence, Movement, and Distribution of Groundwater

Try these first

1. 1.

   What is an aquifer?

   Hint

   Think about where groundwater is found.

2. 2.

   Define porosity.

   Hint

   It's a measure of how much space there is in rocks.

3. 3.

   What is the main characteristic of an unconfined aquifer?

   • It is under pressure.
   • Its upper surface is the water table.
   • It is always deeper than confined aquifers.

   Hint

   Think about how water enters this type of aquifer.

4. 4.

   True or False: Aquicludes allow water to flow freely.

   • True
   • False

   Hint

   Remember the definition of an aquiclude.

5. 5.

   Calculate the discharge of water in a confined aquifer given a hydraulic conductivity of 10 m/s, an area of 50 km², and a hydraulic gradient of 0.02.

   Hint

   Ensure you convert all units to standard measurements.

6. 6.

   Discuss how urbanization impacts the recharge rates of local aquifers and suggest two methods to mitigate these effects.

   Hint

   Think about the design of urban landscapes and their impact on water flow.