Daily Question 2015.8.24 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (multiple-choice question)
Thread Content
This post was last edited by Zhang Xiaopeng on 2015-9-18 at 16:17. The main reason why unconfined aquifers are more susceptible to pollution is: A. Slow circulation B. Weak self-purification capacity C. High permeability D. Close connection with the outside world. Correct answer: C. Explanation: Unconfined water refers to groundwater that lies below the surface and above the first stable aquitard, and has a free water surface. Confined water/artesian water is groundwater that fills the space between two aquitards, and it is under pressure greater than atmospheric pressure. Groundwater is protected by an impermeable layer, has low permeability and is less prone to pollution; however, once polluted, it is very difficult to restore.
The main reason why aquifers are more susceptible to pollution than confined aquifers is: D
The main reason why aquifers are more susceptible to pollution than confined aquifers is: C. High permeability. A. Slow circulation. B. Weak self-purification capacity. C. High permeability. D. Close connection with the outside world
D. In close contact with the outside world. . . . . . . . . . .
C.....................................
The main reason why aquifers are more susceptible to pollution than confined aquifers is: D. Close connection with the outside world
The main reason why aquifers are more susceptible to pollution than confined aquifers is: D. Close connection with the outside world
The main reason why aquifers are more susceptible to pollution than confined aquifers is: (CD) A. Slow circulation B. Weak self-purification capacity C. High permeability D. Close connection with the outside world
C. D. －－－－－－－－－－－－－－－－
I chose A, right? Right, right?