Reference no: EM131008835
Groundwater
Complete and use this guide as reference for Lecture Quiz 8
Part A-
1. Check fig 13.1 (p.340):
a. What percentage of the total liquid water of the planet is freshwater?
b. Where is the biggest reservoir of freshwater? Which one is most available to humans?
2. Watch video : https://www.youtube.com/watch?v=al-do-HGuIk
a. Sketch and describe the movement of water through the hydrologic cycle. Specifically: once water has fallen on land, what path make the water take? Video talks of "flows" (paths) and "stores" (reservoirs)
Part B-
3. What is groundwater? "Many people believe e that groundwater occurs in underground rivers". Explain.
4. Describe the two important geologic work that groundwater does.
Watch video: water table
5. "The water table is a flat surface" T or F? Explain
6. Why is it important to know the position and shape of the water table? How can we know where the water table is and its fluctuations?
7. What is the difference between a gaining and a losing stream?
8. Watch video: Porosity and permeability (start at min 1:20)
9. What important factors affect the storage and movement of groundwater?
10. Define: porosity, permeability, aquitard and aquifer.
11. Give examples of:
- Rocks with good porosity but low permeability:
- Rocks with good porosity and permeability:
12. Analyze fig 14.10 in textbook and explain what factor affect the movement of groundwater (flow lines). Why do the flow lines (arrows) show upward movement of groundwater in areas such as beneath the stream?
13. What is a well?
14. What is the cone of depression?
15. Draw and label an artesian system with: a flowing well, a no flowing well, aquitard, aquifer and pressure surface.
Part C-
16. What are spring, hot spring and geysers?
17. What is the source of heat for most hot springs and geysers? What causes a geyser to erupt?
18. What are some environmental problems associated with pumping groundwater for irrigation and in coastal areas?
19. How ground subsidence relates to groundwater?
20. What causes caverns and karst topography? How do sinkholes form?
Attachment:- Assignment.rar
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