The isotopic ages of Hawaiian Island basalts increase regularly to the ________.
A. north
B. northwest
C. south
D. northeast
E. east
Answer: B
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Which would you expect to be more viscous, a polymer made of long molecular strands or one made of short molecular strands? Why?
A. short molecular strands because of a greater density B. long molecular strands because of a greater molecular mass C. long molecular strands because they tend to tangle among themselves D. short molecular strands because their ends are typically polar
Zonal patterns
A) feed the formation of intense cyclones. B) feed the formation of intense anticyclones. C) create substantial regions of heavy weather. D) show little north-south displacement between contour lines on a 500 mb map.
Which of the following statements is NOT true about the Florida Everglades?
A) The northern part of Lake Okeechobee was drained to provide farmland for sugar cane. B) Despite human actions much of the wetlands have been self-regenerating and self-restoring. C) The Everglades were once a shallow, 50-mile wide river. D) Canals and levees constructed in the 1950s allowed for urban expansion of Miami and Fort Lauderdale. E) The waterways are heavily contaminated with fertilizer runoff.
Which of the following can be the target of a neurotransmitter?
A) a muscle cell B) the cell of a gland C) a neuron D) all of these