What is true about the Walker Circulation?
A. South America’s west coast has low pressure.
B. High pressure develops over northern Australia.
C. Cloudy, wet weather is found all over the Pacific.
D. It is the reverse of the circulation during an El Niño event.
E. Trade winds blow from west to east.
D
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Science does not utilize beliefs or supernatural explanations because they
a. have been proven to be true and so science isn’t needed. b. none of these. c. have been proven to be untrue. d. cannot be tested
In a metropolitan area, buildings of different heights are a danger to each other because ____
a. ?tall buildings sway slower than lower buildings, allowing them to collide b. ?tall buildings sway faster than lower buildings, allowing them to collide c. ?short buildings are more likely to rupture during vertical motion, making them crumble during lateral motion d. ?tall buildings are more likely to rupture during vertical motion, making them crumble during lateral motion e. ?different building heights resonate with vertical motion at different frequencies and can amplify vibrations
A tidal current can produce a rapidly spinning body of water called a vortex or ________
A) ebb current B) flood current C) shoal D) tidal bore E) whirlpool
What is the process called by which arid and semiarid lands become degraded and less productive?
A) drought B) desertification C) razed D) oasis E) afforestation