An ________ rock is one that does not allow water to flow through it easily.
A. indestructible
B. impermeable
C. unfractured
D. atmospheric
E. unstable
Answer: B
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Suppose you have received a vegetation map from the US Forest Service. The map has a field called area, which is measured in square meters. But you need area measurements in acres for your project. Describe the procedure you will follow to solve the problem. (The equation for converting square meters to acres is: acres = area in m2 / 1000000 * 247.11)
What will be an ideal response?
Which option best describes the direction of the eruption of Mount St. Helens and the cause of this action, according to Figure 15.24 in your textbook?
A) Magma pressure built up and caused a vertical eruption of magma and ash. B) A rock slide released pressure on the magma, causing a horizontal eruption. C) An earthquake sheared off part of the mountain, causing a horizontal eruption. D) An earthquake opened a vent in the top of the mountain, releasing pressure on the magma and causing a vertical eruption.
Compared to near-shore aquaculture, open ocean aquaculture
A) is more polluted. B) has higher concentrations of pathogens. C) is restricted to carnivorous species. D) has less competition from other activities.
The lowest notch shown on this figure is 9 meters wide and 5 meters high from its base. The river has a velocity of 1 meter per second when it fills the notch. Based on the accompanying graph, what is the probability each year that the notch will be filled to the top?
A) 90% to 95%
B) 60% to 80%
C) 40% to 45%
D) Less than 40%
E) None of these are correct.