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Before Present: Quiz


Question 1: The problem was tackled by the international radiocarbon community in the late 1950s, in cooperation with the U.S. ________.
National Institute of Standards and TechnologyNational Technical Information ServiceNational Oceanic and Atmospheric AdministrationBureau of Industry and Security

Question 2: The BP scale is sometimes used for dates established by means other than radiocarbon dating, such as ________.
FossilGeologic time scaleGeologyStratigraphy

Question 3: [10] The year 1950 is convenient because it predates large scale atmospheric testing of nuclear weapons, which altered the global ratio of ________ to carbon-12.
Carbon-14Radiocarbon datingOxygenRadon

Question 4: Beginning in 1954, metrologists established 1950 as the origin year for the BP scale for use with ________, using a 1950-based reference sample of oxalic acid:
Geologic time scaleRadiometric datingRadiocarbon datingIsotope geochemistry

Question 5: Before Present (BP) years is a time scale used in ________, geology, and other scientific disciplines to specify when events in the past occurred.
EngineeringCivil engineeringMiningArchaeology


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