What is thcut off agfor dating fossils by their Carbon 14 content?
A) 60,000 years
B) 12,000 years
C) 6,000 years
D) 2,000 years
E) 500 years
Correct Answer:
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Q29: ThEarth has experience_ major mass extinctions during
Q30: Which fossil woulyou expect to bclosest to
Q31: Which fossil woulyou expect to bthdeepest?
A)dinosaur
B)human
C)primate
D)bacteria
E)all would
Q32: What is thtimit takes for half of
Q33: Typically, wherwoulwexpect to finolder fossils?
A)superficial layer of
Q35: Thradioisotopandaughter element content armeasureto perfor_ dating.
A)isotonic
B)strontium
C)decay
D)carbon 14
E)radiometric
Q36: Which rock layer is least likely to
Q37: What is thagof tholdest known terrestrial rock?
A)4.404
Q38: Thbreakdown of uraniu238 into lea206 is an
Q39: What is thhalf-lifof uraniu238 to lea206?
A)2.5 million
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