A negative magnetic anomaly recorded from the seafloor correlates with ________.
A. normal polarity
B. an absence of polarity
C. reversed polarity
D. positive polarity
Answer: C
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As an air parcel rises, it
A) compresses and warms. B) compresses and cools. C) expands and cools. D) expands and warms.
Which of the following is a reasonable approximation of the rate that plates move?
A) the speed a turtle walks B) the rate of growth of human hair or fingernails C) the speed of a mountain glacier D) the speed of deep ocean currents
A(n) ____________________ flow pattern is characterized by strong north and south winds, with Rossby waves that have large amplitude and peaked ridges and deep troughs
Fill in the blank(s) with correct word
Beginning in the eighteenth century, discoveries in science, medicine, and public health caused death rates to drop dramatically.
Answer the following statement true (T) or false (F)