level: HYDROGEOLOGY
Questions and Answers List
level questions: HYDROGEOLOGY
| Question | Answer |
|---|---|
| What is Hydrogeology? | The study of groundwater |
| Describe how the water cycle affects groundwater in 6 keywords. | Evaporation -> Condensation -> Runoff -> transpiration -> Sublimation -> Infiltration -> Percolation |
| What is water that percolates into the water table called? | Phreatic water |
| True or False: Water that seeps into the upper soil is called phreatic water. | False. It is called seepage water. |
| What can happen to seepage water? | -Can be drawn back to the surface -Cab be absorbed by plants -Can bepulled into the water table by gravity |
| What are the zones that make up the Hydrogeological system from close to the surface to deep under the surface? | Unsaturated zone (Partial air and water inside pores) Saturated zone (Only water inside the pores) Boundary layer (No water or air/ IMPERMEABLE) |
| What are the subzones of the Unsaturated zone? | Soil water zone (surface to deepest tree roots) Intermediate zone (from soil water zone to Capillary boundary) Capillary zone (from the capillary boundary to the groundwater table surface) |
| Define and describe capillary action. | -Definition: the ability for liquid to flow in confined spaces without the support of externa forces. -Description: Water molecules move against gravity and rise upwards towards the surface. |
| What is another name from the saturated zone? | Phreatic Zone |
| What are the types of cavities between rocks? | Pore cavities (only inside clastic sediments) Fissure cavities (Long thin cracks) Karst cavities (cracks of irregular and different sizes) |