Ground Water - Water Budget


1. During which month will the potential evapotranspiration usually be the greatest in New York State?




2. When rainfall occurs, the water will most likely become surface runoff if the surface of the soil is




3. An area of high precipitation and low potential evapotranspiration is most likely to have




4. All 3 tubes contain the same volume of beads. Which tube contains the beads with the greatest surface area?






5. After a heavy rain the most run off would probably occur in an area where the soil contained large amounts of




6. As compared to the porosity of the 0.9mm beads, the porosity of the 0.3mm beads is





7. Water is poured into each tube up to the dotted line. Which tube held the smallest volume of water?






8. When rainfall occurs, the water will most likely become surface runoff if the surface of the soil is




9. An area of high precipitation and low potential evapotranspiration is most likely to have




10. Ground water is withdrawn when




11. Which particles have the least permeability?






12. Stream discharge would normally be highest during a period of




13. Assuming a constant land slope, the greatest infiltration of water into the ground will occur when the surface is




14. Surface runoff of precipitation occurs when




15. The ground just below the water table is




16. Which is most important in determining the amount of ground water that can be stored within a rock?




17. The ground water storage for a location is at the maximum. If the precipitation is greater than the potential evapotranspiration in this area, which will occur?




18. Through which tube in the diagram will water pass at the greatest rate?





19. The potential evapotranspiration of an area is most dependent on the




20. The main source of water for the local water budget is




21. During a dry summer, stream discharge is primarily controlled by the




22. As the amount of precipitation on land increases, the depth from the surface of the earth to the water table will probably



23. The greatest amount of water would be needed to wet the surface of equal volumes of




24. Which would cause the potential evapotranspiration to decrease in a given month




25. A barrel is packed full of marbles. Another barrel is packed full of golf balls. Each barrel is then filled with water. Compared to the amount of water in the barrel of marbles, the amount of water in the barrel of golf balls is



26. If the bottoms of all three tubes was placed in a shallow pan of water, in which tube would the water rise to the highest level?





27. Surface runoff will not occur when




28. As ground water flows from gravel into sand, its rate of flow will probably



29. Which factor has the least effect on the rate of surface runoff?




30. As both the angle and duration of insolation increase, the potential transpiration will generally



31. Which type of climate would most likely be found in an area that has a high potential for evaporation of water but low actual evaporation of water?




32. Over several years, a graph of the velocity of streamflow for a point in a river in New York State will probably




33. Which property of a well-sorted, loose material will increase as the particle size decreases?




34. Low stream discharge during the summer months is most likely the result of




35. The actual evapotranspiration (Ea) during the year is



36. Why do most streams in New York State have a greater stream discharge in spring than in summer?




37. In which area will surface runoff most likely be greatest during a heavy rainfall?




38. A region with an arid climate has an annual precipitation that is



39. 100 ml of water is poured into each of the 3 tubes and is allowed to drain into beakers. In each case the volume of the recovered water is less than 100 ml. Which tube will retain the most water?





40. A porous layer of rock which contains water is known as




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