Question 51 pts Dendrochronology is an absolute dating technique based on the fr
ID: 291613 • Letter: Q
Question
Question 51 pts
Dendrochronology is an absolute dating technique based on the fracturing of obsidian rock in the construction of stone tools.
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Question 61 pts
Human burning of fossil fuels and nuclear weapons testing have altered global radiocarbon levels.
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Question 71 pts
Inorganic material such as rocks is required for radiocarbon (Carbon 14) dating.
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Question 81 pts
Paleomagnetic dating can be used to date sediment samples ranging from several hundred thousand to millions of years old.
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Question 91 pts
Potassium-argon dating requires a sample of organic material such as bone or shell.
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Question 101 pts
Geologists have used Potassium-Argon (radiopotassium) dating to date rocks as old as 4 billion years old.
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Question 1110 pts
Why is it useful to researchers to have a range of dating techniques available? Which of the dating techniques described in the text and websites are most useful for the study of human evolution, and why?
TrueExplanation / Answer
Que 51: Statement is false because Dendrochronology is the study of the annual growth rings of trees as a dating technique to build chronologies.
Que 61: the statement is true as burning of fossils & blasting of bombs release radio carbons in the atmosphere & their concentration increses.
Que 71: Statement is false because radiocarbon dating is applied on organic materials as inorganic materials require more pretreatments for dating.
Que 81: Statement is true as paleomagnetism is based on the analysis of records of orientation of dipoles existing due to the occuring magnetic field when the rock was forming.
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