Multiple Choice
Half-life is an estimate of
A) half of the age of a rock's life.
B) the age of a rock's life that is at least 50% likely to be correct.
C) the former size of a rock.
D) the time it takes for half of a rock's isotope atoms to decay.
E) the weight of the isotope in a rock.
Correct Answer:
Verified
Correct Answer:
Verified
Q44: The half-life of carbon-14 is _ years.<br>A)
Q45: Which CANNOT be accurately dated using radiometric
Q46: Which of the following BEST describes the
Q47: Which of the following places the
Q48: If a rock contains 75% lead-206,you would
Q50: Which of these would be used to
Q51: Which period contains the present day?<br>A) Tertiary<br>B)
Q52: You are a scientist classifying a new
Q53: The evidence that scientists currently have suggests
Q54: Uranium-238 has a half-life of 4.5 billion