What happens when water is withdrawn from an aquifer faster than it can be recharged?
A)The water table becomes lower.
B)The water table remains stable.
C)The water table rises.
D)The lenses of salt water intrude on top of fresh groundwater.
E)A drought occurs.
A
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If we were to lower our rate of CO2 production by a third-down from 9 to 6 billion tons per year-the concentration of CO2 in the atmosphere should
A. reach a steady state. B. continue to increase. C. start to decrease. D. It depends upon whether there are any major volcanic eruptions.
Which of the following corresponds to low pressures observed on a constant height chart?
A. low heights on a constant pressure chart B. low pressures on a constant pressure chart C. high heights on a constant pressure chart D. high pressures on a constant high chart
The principle of Uniformitarianism assumes that physical processes that operate in the modern world also operated in the past, at quite different rates.
a. true b. false
Ring of diamonds lies in ________ Africa
A) southern B) northern C) eastern D) western