5. Transport Mechanisms in Groundwater

Try these first

1. 1.

   Define molecular diffusion in the context of groundwater.

   Hint

   Think about how substances naturally spread in a solution.

2. 2.

   What does advection refer to in terms of transport?

   Hint

   Consider how rivers carry sediments.

3. 3.

   What is the primary mechanism of transport when diffusion is the main mode?

   • Advection
   • Sorption
   • Diffusion

   Hint

   Think about how molecules naturally move in a still fluid.

4. 4.

   True or False: Advection can be dominant in groundwater transport.

   • True
   • False

   Hint

   Consider conditions in flowing rivers.

5. 5.

   If a pollutant is introduced into a shallow lake with high wind activity, how would you expect it to disperse over time?

   Hint

   Consider how surface currents mix and influence distributions.

6. 6.

   In a study comparing groundwater in sandy and clay soils, how would the long-term effects of a chemical spill differ?

   Hint

   Reflect on the retention properties of these soil types.