Which of the following terms refers to the reversal of the positions of surface high- and low-pressure areas at the east and west ends of the Pacific Ocean?
A. upwelling
B. La Niña
C. El Niño
D. Southern Oscillation
Answer: D
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A forecast of an extended period of dry weather would be made for a region beneath:a
an upper-level trough. b. the polar jet stream. c. a cold pool of air aloft. d. an upper-level ridge. e. a shortwave trough
The ________ is an international panel of scientists that assesses the evidence for and effects of climate change.
A. IPCC B. EPA C. GSA D. GWA
Motivations for 16th-century European overseas exploration and expansion included all but which of the following?
A) Europe's growing population and limited agricultural resource base B) competition among numerous small monarchies in Europe C) declining wealth and land holdings of the European aristocracy D) boredom with European food, culture and ways of doing things E) search for commercial advantage and economic gain
Why are large rock samples weaker than small samples of the same rock?
What will be an ideal response?