Magnetic surveys of the ocean floors reveal
A. alternating strips of normal and reversed polarity paralleling the mid-Atlantic ridge.
B. that reversed polarity is rare.
C. thin oceanic crust composed of basaltic rocks.
D. all of the above
Answer: A
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A) 20% B) 5% C) 10% D) 25% E) 50%
Barrier islands are:a
perpendicular to the shore. b. formed when sediments accumulate on submerged rises. c. broad and offshore d. connected to the shore.
Under the Law of Diminishing Marginal Utility, what factor limits our ability to rise from Utility line 1 to Utility line 2?
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