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. 4.6 million years old. B. 4.6 thousand years old. C. 4.6 billion years old. D. 4.6 trillion years old.
The ________ zone forms the boundary between marine ecosystems and terrestrial environments
A) intertidal B) photic C) pelagic D) benthic
One theory of cloud electrification states that during the formation of precipitation, regions of separate charge exist within tiny cloud droplets and larger precipitation particles. In the lower part of these particles we find negative charge, while in the upper part we find positive charge
a. True b. False
The world's highest current population growth rate is in the United Arab Emirates.
Answer the following statement true (T) or false (F)