Using the Periodic Table, what can you say about the element silicon (Si)?
A. it has 14 electrons in the outer shell
B. it has 3 electron shells and 4 electrons in the outer shell
C. it has 2 electron shells and 2 electrons in the outer shell
D. it has 4 electron shells and 3 electrons in the outer shell
E. None of these choices are correct.
Answer: B
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Bathymetry is best defined as the study of ________
A) ocean depths B) coral reefs C) human populations D) earthquakes E) fish populations
A major difference between a barrier island and a barrier spit is
A) a barrier spit is connected to the mainland, whereas a barrier island is not. B) barrier spits are anthropogenic, modeled after natural barrier islands. C) a barrier spit is a depositional feature that connects the barrier island to the mainland. D) one of regional terminology, a barrier island and a barrier spit are the same thing.
Transportation efficiency refers specifically to ________
A) employing more hybrid vehicle technology B) increasing fuel conservation measures C) using carbon capture and storage (CCS) technology D) employing more renewable fuels E) improving fuel efficiency in electric power plants
The earliest documented recognition that misuse of the natural environment can have nasty consequences was
A. Plato's writings 2500 years ago. B. George Perkins Marsh's 1864 publication of Man and Nature. C. Roosevelt's warnings about overuse a century ago. D. Rachel Carson's Silent Spring, alerting the public to the dangers of pollution in 1962.