What is the "Doppler effect?"
A. a change in the speed of light as the source moves relative to the observer
B. a change in the frequency of light as the source moves relative to the observer
C. a change in the luminosity of light as the source moves relative to the observer
Answer: B
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If lungfishes and salamanders are more closely related to each other than either is to salmon, then an evolutionary classification should classify
A) lungfishes and salamanders together to the exclusion of salmon. B) lungfishes and salmon together to the exclusion of salamanders. C) salamanders and salmon together to the exclusion of lungfishes. D) All of the above would work as evolutionary classifications.
From which of the folk housing hearths did the Tidewater house emerge?
A) New England B) Southern Atlantic C) Middle Atlantic D) Lower Chesapeake E) Southwest
Disappearance of Mount Kilimanjaro's glaciers have been attributed solely to climate change
Indicate whether the statement is true or false
One fathom is equal to ________.
A. 1 meter B. 6 meters C. 6 feet (which is roughly 2 meters)