How did the science community piece together the absolute ages of rocks in the last half of the twentieth century?
A) based on where the rock is found, scientists know exactly how old the rock is
B) based on the type of rock, scientists know exactly how old it is
C) they never did
D) through the measurement of radioactive decay
Answer: D
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Answer the following statement true (T) or false (F)
When the policies, practices, or laws of an organization or government disadvantage people because of their cultural differences it is considered:
a. ethnic discrimination. b. xenophobia. c. racism. d. institutional prejudice. e. institutional discrimination.
Which metamorphic conditions may result in foliation?
A. Regional metamorphism B. Both contact and regional metamorphism C. Contact metamorphism
Minerals have specific chemical compositions and describable structures.
Answer the following statement true (T) or false (F)