When geologists study metamorphism in the laboratory, which factor would they probably not vary?
A) rock composition
B) temperature
C) volume available for reaction to occur
D) abundance and composition of fluid
Answer: C
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The earliest Homo species was ____
a. Homo erectus b. Homo sapiens c. Ardi d. Lucy e. Homo habilis
Density-independent factors such as earthquakes and hurricanes are
A) abiotic factors that maintain a population near equilibrium. B) biotic factors that maintain a population near equilibrium. C) abiotic factors that are not involved in maintaining a population near its equilibrium. D) biotic factors that are not involved in maintaining a population near its equilibrium.
The primary basis for classifying detrital rocks is ________, whereas the primary basis for classifying chemical rocks is ________
A) particle shape; trace elements B) crystalline structure; Sorting C) particle size; mineral composition D) sorting; density
Which type of agent prevents the body from using oxygen?
a. Choking b. Cyanide compound c. Irritant d. Nerve agent