Which pair of processes transforms metamorphic rocks to igneous rocks?
A) application of heat and pressure
B) transportation and lithification
C) melting and crystallization
D) melting and precipitation
Answer: C
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According to the First Law of Thermodynamics, what should happen to a rising air parcel?
A) it should get warmer and expand. B) it should cool and expand. C) it should cool and shrink. D) it should get warmer and shrink.
The ecological efficiency of herbivores and carnivores is estimated by most authorities to be roughly:
a. 1 percent. b. 10 percent. c. 30 percent. d. 90 percent.
____________________ is the combination of all factors that limit the growth of a population.
Fill in the blank(s) with the appropriate word(s).
Alfred Wegener included all of the following lines of evidence as supporting his "continental drift" hypothesis except one. Which was NOT part of Wegener's evidence?
a. the geometrical fit between South America and Africa b. late Paleozoic glacier features c. stripes of reverse magnetism on either side of oceanic rides d. similar fossils on widely separated continents