| With reference to groundwater, consider the following statements. |
| 1. The permeable rock in which water is stored is known as aquifer. |
| 2. The water table is the surface where the water pressure head is equal to the atmospheric pressure i.e the surface of the saturated area. |
| 3. The water table is far below on hill tops. |
| Which of the statements given above are correct? |
A) 1 and 2
B) 1 and 3
C) 2 and 3
D) All of these
Correct Answer: D
Solution :
[d] The water table is the surface where the water pressure head is equal to the atmospheric pressure. It may be conveniently visualized as the 'surface' of the sub-surfaces materials that are saturated with ground water in a given vicinity. However, saturated conditions may extend about the water table as surface tension holds water in some pores below atmospheric pressure. Individual points on the water table are typically measured as the elevation that the water rises to in a well screened in the shallow ground water.
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