The reversal of the positions of surface high and low pressure at opposite ends of the Pacific Ocean is called?
a. ?El Niño.
b. ?the Southern Oscillation.
c. ?upwelling.
d. ?La Niña.
e. ?the Ekman Spiral.
ANSWER: b
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A) intertidal B) photic C) pelagic D) benthic
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Answer the following statement true (T) or false (F)
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A. 4.6 million years old. B. 4.6 thousand years old. C. 4.6 billion years old. D. 4.6 trillion years old.
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a. True b. False