Which of the following materials has low porosity and low permeability?
A. uncompacted clays
B. well-sorted sand
C. unfractured granite
D. limestone with caverns
Answer: C
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The shape of most European cities is almost entirely due to building and planning activity in the twentieth century
Indicate whether this statement is true or false.
How does fractional distillation work?
A. It takes advantage of the different melting points to separate molecules. B. It takes advantage of the different boiling points of molecules to separate them. C. It uses the fraction of carbon in the isomers to separate the molecules. D. It takes advantage of the different weight of molecules to separate them. E. none of the above
Why are volcanoes NOT found at transform boundaries?
a) Transform boundaries cause increases in temperature that exactly offset decreases in pressure of the mantle. b) Transform boundaries cause changes to the pressure, temperature, or composition of the mantle. c) Transform boundaries do not cause changes to the pressure, temperature, or composition of the mantle. d) Transform boundaries cause decreases in temperature that exactly offset increases in pressure of the mantle.
Motion in the atmosphere is called
A) climate. B) wind. C) convection. D) wave.