What property does the universe possess that will determine its final state?
What will be an ideal response?
The amount of dark matter as yet undetected could sway the density of the universe above the critical density and result in the possibility of a "big crunch" ending.
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Orogenic belts include all of the following except
a. intense deformation. d. metamorphism. b. suture zones. e. carbonate assemblages. c. plutonism
A region with a small amount of arable land and a large number of farmers will have a(n)
A) efficient agricultural practice. B) low physiological density. C) overpopulation. D) high agricultural density. E) low arithmetic density.
A rock consists of small but well-formed, randomly oriented, intergrown silicate-mineral crystals. Which type of rock is it: igneous, metamorphic, or sedimentary?
What will be an ideal response?
Which of the following is a common metamorphic process?
A. rotation of minerals into a common orientation B. remobilization of chemical constituents into light and dark bands C. dissolving some parts of the rock and carrying the material away D. deforming objects into new shapes E. All of these.